In the galaxy

If we are on a planet that is literally dust in the winds of the galaxy, how can our lives mean much of anything? 

It's the bonds, friendships, relationships and memories we forge with others is what makes our lives worth living. I love making others laugh, smile, and feel like they are one in a million. The only thing I wish for is for someone to do the same for me. So in a galaxy, an existence such as ours, we should live it to the best of our abilities so we are remembered. So we aren't just dust in the wind.