" Quantum mechanics, for example, shows us that we are not as separate from the rest of the world as we once thought. Particle physics shows us that the “rest of the world” does not sit idly “out there.” It is a sparkling realm of continual creation, transformation, and annihilation. The ideas of the new physics, when wholly grasped, can produce extraordinary experiences. The study of relativity theory, for example, can produce the remarkable experience that space and time are only mental constructions!4 "

― Georg Feuerstein , The Yoga Tradition: Its History, Literature, Philosophy and Practice