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.

Image of Satguru Sivaya Subramuniyaswami
The older you get, the more disciplined you should get, the more sadhana you should perform as you drop off the extraneous things of the world.
—Gurudeva