Answer:
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.
What get wet while drying
He stands beside the road. In a purple cap at tattered green cloak. Those who touch him, curse him.
Some live in me, some live on. And some shave me to stride upon. I rarely leave my native land. Until my death I always stand. High and low I may be found. Both above and below ground.
What is that which, though black itself, enlightens the world without burning?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?