Explaining Hinduism's doctrine "World is an illusion, only god is real" in a secular and logical way.

I will prove Hinduism in a logical way and it would sound secular. Just read.

So the claims are "Only God is real" and "World is an illusion".

World is an illusion:- People usually assume this means what we see doesn't exist and we are hallucinating this world. But that's not what the real claim is. The real claim is that the world is temporarily or impermanent. The body you have is false in the sense that it is only true in the present. In the past before your birth the body was false or it didn't exist. In the future once again it will become false after death. So everything we see is temporary and not real in all the 3 times - past, present and future.

Only god is real:- Now what is the proof of god? First of all god is not a supernatural entity. It is simply a name given to the permanent, everlasting element of universe. The permanent or everlasting element of universe is probably energy since energy can take the shape of matter. A better way to understand it is to imagine gold and a golden bracelet. The bracelet is just temporary shape of the gold. The gold is more real than the bracelet since you cannot have anything without it. But the bracelet is false even without the gold if you change the shape. Gold persists. Similarly when you break a glass the molecules are not broken. So the most fundamental particle or energy is not broken. This fundamental particle or energy is god.

And no, god is not some supernatural entity that grants our wishes, judges us or takes us to heaven. It is simply an element of natural world.

This is my secular version of Hinduism.