Brains and Realities

Can human brains perceive ultimate reality directly? And what roles do the left and right hemispheres of the brain play in this? Modern physics clearly points out that space and time are illusions. The intriguing question is: How did mystics two thousand years ago come to the same conclusion without the aid of scientific instruments or advanced mathematics? Is there really a time-less and space-less sphere that we can access here and now by merely switching off or on specific neural circuit...