The music represents a young mind in that state of semi-consciousness we all experience as we fall asleep. Strange thoughts and desires flood it unbidden and uncensored. Truths rise to the surface which, in its conscious state, the mind would try to hide. The young one looks in a mirror and hates what is there, so weeps and prays to be transformed on waking in the morning. Or, maybe, is asking that the world may be changed and grow more accepting instead. Or perhaps both.
The whole piece is therefore a description of a descent into sleep and ends where it starts, with a call for togetherness and a new start.
When I wrote the final passage I had in mind the painting Sleep by Salvador Dali, where a huge form is suspended asleep on slender wooden stilts.