When the obstacles are abandoned does one experience dharma everywhere? When I first started to think of encouraging myself on the path I imagined that when I reach the moment of cessation that I would see and experience dharma in an all pervading way " omniscient " is this true or false ...to sum it up once reaching enlightenment there should be a connection made with some sort of unified reality.
I imagined that when I reach the moment of cessation that I would see
  and experience dharma in an all pervading way


Wrong! There's no seeing at the moment of cessation. All experiences cease. There is no arising.

Only the Buddhas attain omniscience with enlightenment. Others do not!


  Connection made with some sort of unified reality.


There's no such thing called a "unified reality". But just before cessation, you will come to the understanding that all conditioned phenomena are impermanent, unsatisfactory &amp; uncontrollable.

Read the answer given by ven.Yuttadhammo to the following question:

How does stream entry occur?