Only one thing registers on the subconscious mind: repetitive application - practice. What you practice is what you manifest.

The mind is in a sad state when Sleep, the all-involving, cannot confine her spectres within the dim region of her sway, but suffers them to break forth, affrighting this actual life with secrets that perchance belong to a deeper one.

You affect your subconscious mind by verbal repetition.

What can one do with levels of gloom and guilt, fear and disbelief, of bewilderment above one's capacity to register?

We, through the cerebral cortex, add the consciousness, spirit and rationality, to this dolphin brained human body avatar. We control our destiny and this body can become a servant of our conscious will, once we learn to communicate fully with it. We are called to bridge the gap between our conscious mind and the subconscious mind.

To dream is to allow our subconscious thoughts exceed our limitations