Vast

I am a grain of sand on the shore A shore of million shores I am a grain of sand on the shore A shore of million shores Placed on planet Tellus On this planet we stand tall In a single solar system One planet out of billions What possible part do we have? Where's the link? I am insignificant Fooled by emotions and this urge of importance "But I must see my loved ones again" Because you're emotional twisted mind says so? Cause man plays a peculiar role in the universe? What possible part - in this puzzle we are in - do we have? I see no importance of the human race Not even my own ego I am but nothing. What's the link? Who are you? What possible part - in this puzzle we are in - do we have?