Intuition: Supernatural or Plain Science

Intuition is the apparent ability to acquire knowledge without inference or the use of reason. Intuition provides us with beliefs that we cannot necessarily justify. Intuition is commonly discussed in writings of spiritual thought. Contextually, there is often an idea of a higher and more qualitative mind of one’s spirit towards which a person strives, or towards which consciousness evolves. Typically, intuition is regarded as a conscient commonality between earthly knowledge and the higher spiritual knowledge and appears as flashes of insight. It is asserted that by definition intuition cannot be judged by logical reasoning.

Or is intuition merely insightful extrapolation based on data that is incomplete? Are we not really receiving any external knowledge through it? Is this just our mind or subconsciousness constructing the knowledge and presenting it to us?