The universe is dynamic, all the worlds in it are in motion, sometimes it is visible and sometimes it is not visible, if observed with deep observation the motion will be visible, someone is giving motion to all the worlds, there is a mystery behind the motion. 

The secret is hidden behind..

The secret that gives motion is hidden behind, it is he who has created this world. We have not created this world, we are definitely its consumers, not its creators. Therefore, all this is not ours, that is why we should enjoy the world with renunciation. There is a secret behind the world, everything belongs to Him. Everything is hidden in that secret, everything belongs to that secret, when nothing is ours, then we should not aspire for the wealth of this world or anyone else’s wealth and property.

— Ancient philosophy.