Intuition is an unconscious form of knowledge. It is immediate and often not open to rational/analytical thought processes. Intuition differs from an opinion since opinion is based on experience, while an intuition is held to be affected by previous experiences only unconsciously. Intuition also differs from instinct, which does not have the experience element at all. Intuition is trans-intellectual, while instinct is pre-intellectual. A person who has an intuitive opinion cannot immediately fully explain why he or she holds that view. However, a person may later rationalize an intuition by developing a chain of logic to demonstrate more structurally why the intuition is valid.
Intuition is one source of common sense. It can also help in induction to gain empirical knowledge. Sources of intuition are feeling, experiences and knowledge.