Answer:
What can you easily break but never touch?
A man goes out in heavy rain with nothing to protect him from it. His hair doesn't get wet. How does he do that?
One strand dangles. Two strands twist. Three or more can fashion this.
I have joy in bringing two together, but darning my existence! My life hangs by a thread, filled with ups, downs and resistance!
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.