Questions: If
Brahman is One only, without a second, how does one experience the manifold
world? 
Answer:
- Due to ignorance led illusion “covers" the consciousness
and "projects" the Many. There is no illusion in the realm of truth.
If there is no illusion,  then there is no universe. If there is no universe,  then
there is no waking. If there is no waking, then there is only the formless soul,
which is present in the form of  the consciousness. 
Thus,  in truth there is only the soul or the  consciousness.
The consciousness is  the ultimate truth or Brahman. Non-dualistic  Reality is all there
is. 
It is called Brahman,  because it is
all-pervasive. It is intrinsically Real, self-effulgent, infinite,
undifferentiated pure consciousness. 
When  the wisdom dawns then one realizes   the waking experience is
mere illusion created out of  the consciousness.  The waking is  a parallel dream and dream is a 
parallel waking. The dream becomes unreal when waking takes place. The waking
becomes unreal when wisdom dawns. The wisdom dawns when waking entity becomes aware
of the fact that,  it itself is not the self,  but the self is the formless soul,
which witnesses coming and going of the three states. In the realm of truth the
witness and the three states are one in essence. That essence is 
The consciousness.  Thus,  there is no second
thing exists other than  the consciousness.  The consciousness is second to none. 
Thus,  there is only ONE. 
In the realm of truth there is
only self-awareness in the midst of the duality. The dualistic show, however,
continues, as before. Only identification with ego (waking entity) is gone
forever.
Self-knowledge is the essence of
the immanent (soul) and the transcendent Reality or Brahman. Humanity has not
yet conceived a more lofty conception of its position in the universe. 
