I adore this deeply philosophical piece, thank you. The above lines apply to every aspect of life, and as I was reading it, I couldn't help but also apply it to the journey of the spiritual self. Because once we've progressed and explored other realities and realms, there is no going back to where and what we were before!
I also see the cave as a metaphor for the great dance of life with all its pitfalls and promises.
Looking forward to reading more of your work. Be well.