According to Osho, the joy felt at sacred places arises because enlightened beings radiate consciousness like light and fragrance; trees, stones, and earth absorb and continue vibrating with that presence for centuries. In places like Bodh Gaya you feel ‘not in this world’—an effortless uplift, peace, and fragrance—because the environment has caught the explosion of awakening and transmits it to sensitive visitors.
Sacred places feel happy because the goodness of awakened people stays in the land and keeps shining, so you feel calm and light there.