Why or why not?
I’ll agree with “What Hammer?”
 r u randy 
In the grand scheme of the universe, no. To the one experiencing it, yes
I believe it is very important, not because of anything supernatural but because our consciousness selects that which we observe from a much more vast reality than we are aware of, and in doing so provides the illusion we take for granted.
I don’t know that we matter to anyone else but ourselves,
but to ourselves we matter quite a bit!!!
Absolutely, for Life-Consiousness is all that truly matters. A rock is just a rock but without Life-Consiousness would it “truly exists”?
Absolutely. Everything that happens is infinitely significant in every way in relation to everything.
Significance is inherent, not given by an outside source. In this way, life is infinitely meaningful, just not in the way most people assume.
No. Because there is no scheme.
Ever hear of the ”Butterfly effect”?
We dont’ know and may never know.
The universe is profoundly indifferent to individual beliefs and desires and philosophies. Why you would imagine it otherwise? Life is far too brief, existence is meaningless and the universe has no purpose. This universe is a pretty grim place, but that does not mean it has to be dull and boring. Each of us is here for a comparative instant then we are gone. The universe doesn’t notice us when we are here and it certainly does not miss us when we are gone. We’re nothing but unified arrangements of atoms and particles, drifting around enjoying consciousness every now and then for a second or so before splitting up to become bits and pieces of trees and stars and french fries. Those companion particles continue drifting though the cosmos, enjoying a kind of fragmented immortality. When you clump together more or less accidentally it might be a part of a rock or another person.. or a french fry.