Adi Sri Shankara creates the Smarta tradition

Adi Sankara, “founder of the six-sect system.” popularized the ancient Smārta five-Deity altar—Gaṇapati, Sūrya, Vishṇu, Śiva and Śakti, and added Kumāra.

Photo of  Gurudeva
As you sit in meditation in a darkened room, practice directing your consciousness inward, to the center of your brain. If you are able to perceive light within your body, you are on the path to immortality.
—Gurudeva