WHAT IS THE DIFFERENCE BETWEEN
AYMAN SAW and AYMAN HAD SEEN
I DONT WANT THE TENSE I WANT THE MEANING

this question is not complete so you should write the rest of the two sentences to show the difference in meaning.
and you know that the past perfect is older than past simple .
Also saw is an instrument used for cutting wood but had seen is the past of see

WHAT IS THE DIFFERENCE BETWEEN
AYMAN SAW and AYMAN HAD SEEN
I DONT WANT THE TENSE I WANT THE MEANING

Ayman saw
this is an action happened from short time or short period

Ayman had seen
this is an action happened from long time or long period



After i had played, i watched TV
this means i played first then i watched TV after playing

had played "happened first or from long time
"watched TV"happened second or from short time