Vast

I am a grain of sand on the shoreA shore of million shoresI am a grain of sand on the shoreA shore of million shoresPlaced on planet TellusOn this planet we stand tallIn a single solar systemOne planet out of billionsWhat possible part do we have?Where's the link?I am insignificantFooled 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 raceNot even my own egoI am but nothing. What's the link?Who are you?What possible part - in this puzzle we are in - do we have?