^^There is great meaning to life for us while we are still in existence as a species. However, in the grand scheme of things, the totality of all of our accomplishments & anything any of us have done will eventually be rendered completely & utterly meaningless when our sun dies. All stars die, and eventually — in about 5 billion years — our sun will die too. Once its supply of hydrogen is exhausted, the final, dramatic stages of its life will unfold, as our host star expands to become a red giant and then tears its body to pieces to condense into a white dwarf. The length of a star's life span depends on its size. Our sun is a yellow dwarf with a diameter of around 864,000 miles (1.4 million kilometers), or about 109 times the size of Earth, according to NASA. Yellow dwarf stars live for about 10 billion years, and at 4.5 billion years old, our middle-age sun is about halfway through its lifetime.
Our star will eventually grow to be larger than we can imagine — so large that it'll envelope the inner planets, including Earth. That's when the sun will become a red giant. The Earth & all of man's architecture, music, films, & everything else that we have accomplished will be completely annihilated as if it never existed, rendering totally meaningless that which once had meaning. If we are able to acquire the ability to colonize other planets before this happens & continue on as a species elsewhere, then meaning will also accompany us as we travel & reach our new destination(s).
Feel better now Ray?