This World’s Affair

For aeons this has been the world’s affair:

Billions come here from none knows where,

They stay here awhile and then off they go,

Can anyone explain why this has been so,

This coming, staying and having to depart

After each being has here played its part?

Man’s clever mind can many things find

But can’t say for sure the purpose behind

This beings’ on Earth being made to appear,

Staying for a bit, then being taken from here.

Shrouded in mystery this must ever remain

Unless the One behind it will deign to explain.