Changing of short plot on PK

In the story PK, the scene which could have been in this way::

Pk, this man, is needed to stay on this earth forever to show that God is nothing but the only inner power of our soul, which is very much able to divert our depressed soul, to modulate the rotten kitchen of our inner power, just to enlighten the lying spirit in us.

He should not be off from the scene by the UNIDENTIFIED FLYING OBJECT, but he should stay amongst us to relieve once again, to make us understand the importance of GOD'S EXISTENCE in our real life.

At the time of his disappearance, we the audience are expecting him to stay on this earth to make his girlfriend (though in reality, it was not his girlfriend) much happier.

I want to change the last scene of this movie to be relaxed again and again.