This Universe is a painting and God is the Artist of the painting. Even though God is not directly visible, He is seen in the marvels of His creation.
One cannot say that there were several paints lying together that formed the painting of their own accord. No, the very existence of the painting points to the existence of some artist who made the painting. While the painting is before us, we cannot see the Artist who has hidden Himself. But the Artist is visible in his Art. The Creator of the Universe is visible in the form of His Creation.
Jee men ye hai ke hoon sanate saane pe nisaar
But ko bithhaa ke saamne yaade Khudaa karoon
I could sacrifice myself for the sake of the Creator
This world is the idol through which I worship God