Verse 13

13. In the dream-state that jiva feels pleasure and pain in a sphere of existence created by his own Maya or ignorance.  During the state of deep sleep,  when everything is absorbed (into their causal state),  he is overpowered by tamas or non-manifestation and comes to exist in his form of Bliss.

"In the dream-state that jiva feels pleasure and pain in a sphere of existence created by his own Maya or ignorance".

The dream state is the experience in consciousness of living within ones own Creation of events and phenomena.  This individual,  this deluded jiva consciousness,  suffers the same results of his delusions in the dream state as he does in the waking state,  due to both states being as a dream,  (as Maya),  merely a projection of the higher Consciousness of Reality.  This is due to the dream state being the creation of that same consciousness and knowledge limited by the delusion of duality with its resultant desires.

"During the state of deep sleep,  when everything is absorbed (into their causal state)"

During the state of deep sleep the jiva is divested of attributes such as delusion,  ignorance,  individuality,  desires and so forth.  In deep sleep one seems as that One Alone,  free from desiring and apparently blissful.

"he is overpowered by tamas or non-manifestation and comes to exist in his form of Bliss".

This apparent bliss is only due to the unawareness and subsequent ignorance of deep sleep,  "his form of bliss".

Only the Absolute Consciousness is true.  All "states" of consciousness are a projection of delusion.  Within this delusion beings "live" their experiences.