Answer:
Born of sorrow, grows with age, you need a lot to be a sage. What is it?
I begin your sentences.
I am clean when I’m black dirty when I’m white.
I tremble at each breath of air, and yet can heaviest burdens bear. What am I?
I am a small paradise surrounded by dryness and heat. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.