perception vs insight

perception and insight both are nouns.

Word	Noun	Adjective	Verb	Adverb
perception	Yes	No	No	No
insight	Yes	No	No	No

As nouns, insight is a hyponym of perception; that is, insight is a word with a more specific, narrower meaning than perception:

Other hyponyms of perception include discernment, perceptiveness, penetration, cognizance.

perception (noun)	insight (noun)
becoming aware of something via the senses	grasping the inner nature of things intuitively
the process of perceiving	the clear (and often sudden) understanding of a complex situation
the representation of what is perceived; basic component in the formation of a concept	clear or deep perception of a situation
a way of conceiving something	a feeling of understanding
knowledge gained by perceiving