Answer:
The more you have of me, the less you see. Who am I?
I am the first you ever saw, what greets you every morning and what goes out in the end.
What is all over a house?
What is between heaven and earth?
Temporary evidence of where you've been strolling
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.