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
Karma is the law of cause and effect, action and reaction governing maya. Anava is the individuating veil of duality, source of ignorance and finitude. Maya is the classroom, karma the teacher, and anava the student's ignorance.
—Gurudeva