The “hard problem of matter” asks: what is matter in itself, beyond equations and interactions? Physics describes how particles and fields behave, but not their intrinsic nature. Similarly, the “hard problem of consciousness” asks: why does brain activity produce subjective experience? Both expose a gap between scientific description and lived reality. Across traditions—Vedanta, Buddhism, Western panpsychism, Daoism, and modern physics—the puzzle is the same: are matter and mind two distinct substances, or two faces of the same reality? Exploring these perspectives reveals how ancient wisdom and modern science converge on this profound mystery of existence.