Insight /(?)/

In·sight

Insight

n.
  1. A sight or view of the interior of anything; a deep inspection or view; introspection; -- frequently used with into.
    He had an insight into almost all the secrets of state.
    — Jortin.
  2. Power of acute observation and deduction; penetration; discernment; perception.
    Quickest insight In all things that to greatest actions lead.