Answer:
This is a shape and a symbol that we literally cannot live without. What is it?
In the middle of night, I surround the gong. In the middle of sight, I end the song
Small, containing light, You'll need it in the dark, It will provide that spark, and shine into the night. Will light up any pyre, 'Cause it can help make a fire.
What is something that can go up quite easily, but is not as easy to bring back down?
What cannot talk but will always reply when spoken to?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.