Intuition is the ability to acquire knowledge without proof, evidence, or conscious reasoning, or without understanding how the knowledge was acquired.
Different writers give the word "intuition" a great variety of
different meanings, ranging from direct access to unconscious knowledge,
unconscious cognition, inner sensing, inner insight to unconscious
pattern-recognition and the ability to understand something
instinctively, without the need for conscious reasoning.
The word intuition comes from the Latin verb intueri translated as "consider" or from the late middle English word intuit, "to contemplate".
Philosophy
Both Eastern and Western philosophers have studied the concept in great detail. Philosophy of mind deals with the concept of intuition.
Eastern philosophy
In the East intuition is mostly intertwined with religion and spirituality, and various meanings exist from different religious texts.
Hinduism
In Hinduism various attempts have been made to interpret the Vedic and other esoteric texts.
For Sri Aurobindo
intuition comes under the realms of knowledge by identity; he
describes the psychological plane in humans (often referred to as mana
in sanskrit)
having two arbitrary natures, the first being imprinting of
psychological experiences which is constructed through sensory
information (mind seeking to become aware of external world). The second
nature being the action when it seeks to be aware of itself, resulting
in humans being aware of their existence or aware of being angry &
aware of other emotions. He terms this second nature as knowledge by
identity.
He finds that at present as the result of evolution the mind has
accustomed itself to depend upon certain physiological functioning and
their reactions as its normal means of entering into relations with the
outer material world. As a result, when we seek to know about the
external world the dominant habit is through arriving at truths about
things via what our senses convey to us. However, knowledge by
identity, which we currently only give the awareness of human beings'
existence, can be extended further to outside of ourselves resulting in
intuitive knowledge.
He finds this intuitive knowledge was common to older humans (Vedic) and later was taken over by reason
which currently organises our perception, thoughts and actions
resulting from Vedic to metaphysical philosophy and later to
experimental science. He finds that this process, which seems to be
decent, is actually a circle of progress, as a lower faculty is being
pushed to take up as much from a higher way of working.
He finds when self-awareness in the mind is applied to one's self and
the outer (other) -self, results in luminous self-manifesting identity;
the reason also converts itself into the form of the self-luminous
intuitional knowledge.
Osho believed consciousness of human beings to be in increasing order from basic animal instincts
to intelligence and intuition, and humans being constantly living in
that conscious state often moving between these states depending on
their affinity. He also suggests living in the state of intuition is one
of the ultimate aims of humanity.
Advaita vedanta (a school of thought) takes intuition to be an experience through which one can come in contact with an experience Brahman.
Buddhism
Buddhism
finds intuition to be a faculty in the mind of immediate knowledge and
puts the term intuition beyond the mental process of conscious thinking,
as the conscious thought cannot necessarily access subconscious
information, or render such information into a communicable form. In Zen Buddhism various techniques have been developed to help develop one's intuitive capability, such as koans – the resolving of which leads to states of minor enlightenment (satori).
In parts of Zen Buddhism intuition is deemed a mental state between the
Universal mind and one's individual, discriminating mind.
Islam
In Islam there are various scholars with varied interpretations of intuition (often termed as hadas (Arabic: حدس), hitting correctly on a mark), sometimes relating the ability of having intuitive knowledge to prophethood.
Siháb al Din-al Suhrawadi, in his book Philosophy Of Illumination
(ishraq), finds that intuition is a knowledge acquired through
illumination and is mystical in nature and also suggests mystical
contemplation (mushahada) on this to bring about correct judgments. while Ibn Sīnā
finds the ability of having intuition as a "prophetic capacity" and
terms it as a knowledge obtained without intentionally acquiring it. He
finds that regular knowledge is based on imitation while intuitive
knowledge is based on intellectual certitude.
Western philosophy
In the West, intuition does not appear as a separate field of study, and early mentions and definitions can be traced back to Plato. In his book Republic he tries to define intuition as a fundamental capacity of human reason to comprehend the true nature of reality. In his works Meno and Phaedo,
he describes intuition as a pre-existing knowledge residing in the
"soul of eternity", and a phenomenon by which one becomes conscious of
pre-existing knowledge. He provides an example of mathematical truths,
and posits that they are not arrived at by reason. He argues that these
truths are accessed using a knowledge already present in a dormant form
and accessible to our intuitive capacity. This concept by Plato is also
sometimes referred to as anamnesis. The study was later continued by his followers.
In his book Meditations on First Philosophy, Descartes
refers to an intuition as a pre-existing knowledge gained through
rational reasoning or discovering truth through contemplation. This
definition is commonly referred to as rational intuition. Later philosophers, such as Hume,
have more ambiguous interpretations of intuition. Hume claims intuition
is a recognition of relationships (relation of time, place, and
causation) while he states that "the resemblance" (recognition of
relations) "will strike the eye" (which would not require further
examination) but goes on to state, "or rather in mind"—attributing
intuition to power of mind, contradicting the theory of empiricism.
Immanuel Kant finds intuition is thought of as basic sensory information provided by the cognitive faculty of sensibility (equivalent to what might loosely be called perception). Kant held that our mind casts all of our external intuitions in the form of space, and all of our internal intuitions (memory, thought) in the form of time. Intuitionism is a position advanced by Luitzen Egbertus Jan Brouwer in philosophy of mathematics derived from Kant's claim that all mathematical knowledge is knowledge of the pure forms of the intuition—that is, intuition that is not empirical. Intuitionistic logic was devised by Arend Heyting to accommodate this position (and has been adopted by other forms of constructivism in general). It is characterized by rejecting the law of excluded middle: as a consequence it does not in general accept rules such as double negation elimination and the use of reductio ad absurdum to prove the existence of something.
Intuitions are customarily appealed to independently of any
particular theory of how intuitions provide evidence for claims, and
there are divergent accounts of what sort of mental state intuitions
are, ranging from mere spontaneous judgment to a special presentation of
a necessary truth. In recent years a number of philosophers, especially George Bealer have tried to defend appeals to intuition against Quinean doubts about conceptual analysis. A different challenge to appeals to intuition has recently come from experimental philosophers, who argue that appeals to intuition must be informed by the methods of social science.
The metaphilosophical assumption that philosophy depends on intuitions has recently been challenged by some philosophers. Timothy Williamson
has argued that intuition plays no special role in philosophy practice,
and that skepticism about intuition cannot be meaningfully separated
from a general skepticism
about judgment. On this view, there are no qualitative differences
between the methods of philosophy and common sense, the sciences or
mathematics.
Psychology
Freud
According to Sigmund Freud,
knowledge could only be attained through the intellectual manipulation
of carefully made observations and rejected any other means of acquiring
knowledge such as intuition, and his findings could have been an
analytic turn of his mind towards the subject.
Jung
In Carl Jung's theory of the ego, described in 1916 in Psychological Types,
intuition is an "irrational function", opposed most directly by
sensation, and opposed less strongly by the "rational functions" of
thinking and feeling. Jung defined intuition as "perception via the
unconscious": using sense-perception only as a starting point, to bring
forth ideas, images, possibilities, ways out of a blocked situation, by a
process that is mostly unconscious.
Jung said that a person in whom intuition is dominant, an
"intuitive type", acts not on the basis of rational judgment but on
sheer intensity of perception. An extraverted intuitive type, "the
natural champion of all minorities with a future", orients to new and
promising but unproven possibilities, often leaving to chase after a new
possibility before old ventures have borne fruit, oblivious to his or
her own welfare in the constant pursuit of change. An introverted
intuitive type orients by images from the unconscious, ever exploring
the psychic world of the archetypes,
seeking to perceive the meaning of events, but often having no interest
in playing a role in those events and not seeing any connection between
the contents of the psychic world and him- or herself. Jung thought
that extraverted intuitive types were likely entrepreneurs, speculators,
cultural revolutionaries, often undone by a desire to escape every
situation before it becomes settled and constraining—even repeatedly
leaving lovers for the sake of new romantic possibilities. His
introverted intuitive types were likely mystics, prophets, or cranks,
struggling with a tension between protecting their visions from
influence by others and making their ideas comprehensible and reasonably
persuasive to others—a necessity for those visions to bear real fruit.
Modern psychology
In more-recent psychology, intuition can encompass the ability to know valid solutions to problems and decision making. For example, the recognition primed decision (RPD) model explains how people can make relatively fast decisions without having to compare options. Gary Klein
found that under time pressure, high stakes, and changing parameters,
experts used their base of experience to identify similar situations and
intuitively choose feasible solutions. Thus, the RPD model is a blend
of intuition and analysis. The intuition is the pattern-matching process
that quickly suggests feasible courses of action. The analysis is the mental simulation, a conscious and deliberate review of the courses of action.
Instinct
is often misinterpreted as intuition and its reliability considered to
be dependent on past knowledge and occurrences in a specific area. For
example, someone who has had more experiences with children will tend to
have a better instinct about what they should do in certain situations
with them. This is not to say that one with a great amount of experience
is always going to have an accurate intuition.
Intuitive abilities were quantitatively tested at Yale University in the 1970s. While studying nonverbal communication, researchers noted that some subjects were able to read nonverbal facial cues before reinforcement occurred.
In employing a similar design, they noted that highly intuitive
subjects made decisions quickly but could not identify their rationale.
Their level of accuracy, however, did not differ from that of
non-intuitive subjects.
According to the works of Daniel Kahneman, intuition is the
ability to automatically generate solutions without long logical
arguments or evidence.
Colloquial usage
Intuition,
as a gut feeling based on experience, has been found to be useful for
business leaders for making judgement about people, culture and
strategy.
Law enforcement officers often claim to observe suspects and
immediately "know" that they possess a weapon or illicit narcotic
substances, which could also be action of instincts.
Often unable to articulate why they reacted or what prompted them at
the time of the event, they sometimes retrospectively can plot their
actions based upon what had been clear and present danger signals. Such
examples liken intuition to "gut feelings" and when viable illustrate preconscious activity.
Honours
Intuition Peak in Antarctica is so named "in appreciation of the role of scientific intuition for the advancement of human knowledge."