Infinite and finite are both mental constructs.

From all aspects of human perception, you truly are your brain.

In this universe, all we perceive is a virtual reality created by the neurons.

The perception of reality is something that is constructed by the human mind based on its own needs and knacks.

Truth in the human world, is constructed, defined and then reconstructed by the human self.

The concern of your brain is not to see the actual nature of reality, but to represent the reality to you in such a way that suits your needs.