Meaning

1. A sight or view of the interior of anything; a deep inspection or view; introspection; frequently used with into.
2. Power of acute observation and deduction
3. Knowledge (usually derived from consumer understanding) that a company applies in order to make a product or brand perform better and be more appealing to customers
4. Intuitive apprehension of the inner nature of a thing or things; intuition.
5. An extended understanding of a subject resulting from identification of relationships and behaviors within a model, context, or scenario.
6. An individual's awareness of the nature and severity of one's mental illness.