Why we do not need demonstrative proof for God's existence to know that God exists Robert Nozick's case for the existence of God

As a counterpoint to demonstrative proofs in metaphysics, Robert Nozick presented the case for God's existence based on the value of personal experiences. Personal experiences shape one's life, but this is even more evident with extraordinary experiences, such can be religious ones. In the next step, says the argument, if those experiences can be explained only by invoking the concept of the Supreme Being, then God exists. The second step mirrors scientific explanation constituting what Nozick calls the "argument to the best explanation." The argument is set against the background of Nozick's methodology which rejects demonstrative proofs in metaphysics. Its purpose is threefold. It aims to establish a certain sort of experience (religious/spiritual) as a legitimate basis for the argumentation; it aims to show that it is not philosophically blasphemous to explain such experiences by introducing a concept of divinity. Finally, it seeks to showcase the non-dogmatic, investigative nature of the argument. By exploring the merits of Nozick's proposal, I will try to elucidate all three components, which should pave the way for a broader discussion on the role of non-demonstrative arguments in metaphysics.