Allah and Algebra

We disagree on God's existence. 

Neither of us can convince the other of God's existence or non-existence, but we know, even if we ourselves will never know in our lifetimes, that the Abrahamic God either exists or not.

This is the ultimate objective truth that exists in theory which we will never know in practice in our lifetimes. 

But whether the Abrahamic God exists, His purpose is clear: Man created Him because Man needs to know that there is something in theory that knows everything there is to know: that objective truth in theory exists even if we cannot possibly know what it is ourselves, just as the future exists even though we may die before it arrives.

Think of God therefore as the whole of everything in the Universe, and more, and ourselves as a parts of it. In the same way that algebra is a reunion of broken parts, acknowledgement of the existence of the concept of the Abrahamic God is what unites us with the rest of Creation. 

There is no need to literally believe, but once we contemplate the reality of the existence of this idea in theory, we will slide ineluctably into contemplation of this idea in practice and in reality.