on what the meaning of "meaning" is.

What is meaningful to me may not be meaningful to you, and vise versa.

That I am lucky enough to be alive in this moment, on this planet, in a universe that is so vast as to be incomprehensible... that I can share and enjoy life, art, music, love, kindness and think about "the meaning" and origins of life and the universe... is plenty of meaning for me to think about and appreciate.

For all we know, the Earth may be the only planet in the whole universe (of trillions of galaxies and zillions of stars and planets) that is habitable for species like us. Or, there may be many other planets teaming with life... but, the nature of our universe may well be such that we will never know or meet other beings from distant worlds, even if they do exist. That is why we should cherish and be good stewards of THIS planet, our home... to pass on to our children, because that, IMO, is the closest thing to "eternal life" that we can hope for. But when I say "our home" and "our children"... I am not speaking of "possessions"... I am speaking of something that cannot be bought or sold or owned, but something we should value highly, for the benefit of all of earth's creatures who live on this lifeboat in space.