A riddle to consider

As sun retreats beneath the land
And moon alights her seat
You may find you are a prisoner
Of a jailer you will never meet.

He is mad and wise and full of advice
A disturbed unconscious king
He requires you to attend a concert
Where his restless memories sing.

Their melodies tell of bliss long sought
of guilt repressed and terrors forgot.
You listen at the edge of your seat till the moon retreats from the sun.

You try to recall him by whom you were caught
So many vile or delightful lessons taught.
Till you come to realize once again
that the two of you are one.