In all that crazy-sounding talk about the immaterial and illusory nature of reality, the only people who end up seeming nuttier (to the "rational, scientific mind") than ancient yogic rishis, vedantins and mystics -- are ... modern quantum physicists.
"What we observe as material bodies and forces are nothing but shapes and variations in the structure of space. Particles are just schaumkommen (appearances). The world is given to me only once, not one existing and one perceived. Subject and object are only one. The barrier between them cannot be said to have broken down as a result of recent experience in the physical sciences, for this barrier does not exist." -- Erwin Schrodinger