n. 内省, 反省

[医] 内省

[ noun ]
the contemplation of your own thoughts and desires and conduct
<noun.cognition>

Introspection \In`tro*spec"tion\, n. [Cf. F. introspection.]
A view of the inside or interior; a looking inward;
specifically, the act or process of self-examination, or
inspection of one's own thoughts and feelings; the cognition
which the mind has of its own acts and states;
self-consciousness; reflection.

I was forced to make an introspection into my own mind.
--Dryden.