Tirunavakkarasar

Tirunavakkarasar, known popularly as Appar, one of the four Samayacharyas.

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