the prerequisite to know thy self
is
know what you are within that enables you to express that which you know (self)
the 2
something is alawys within something to express being something within

the know thy self was conceived in an era when it was believed only god (any god) and people possessed consciousness

thus it encourages people to express themselves as the god they believe in
and
no other way but that way because all things other than people are devoid of conscious thus are lifeless matter (inconsequential)
and
all people whom do not know the way of your god are ignorant because they have forgotten your way

this is the archetype of order local tradition style of most orders

while they seek the correct structure to fit their structure of order to make their order the universal order