Code of life

Can anybody ever decide,
 how much to delve inside ?
Even as we try to fathom
the inner depths of mind.
The periphery of our inner selves
is spread so vast and wide
What lies within, how many have seen?
beyond what the eyes can sight.
This quest, this search, goes on and on
till the end of  our road.
But the question remains unanswered
as no one have cracked the code.