What are chakras? Sadhguru explains the yogic idea of energy centres

In yogic tradition, chakras, Sanskrit for "wheel", are points where energy pathways called nadis meet in the subtle body. Sadhguru, founder of the Isha Foundation, says the human system has 114 significant chakra points, though seven major chakras are commonly discussed. These ideas belong to a spiritual tradition and have not been established by modern science.