Wikipedia
Thayumanavar or Tayumanavar, (1705–1742), pronounced Thāyum-ānavar, is one of the spiritual giants and a Tamil philosopher from Tamil Nadu, India. Thayumanavar articulated the Saiva Siddhanta philosophy. He wrote several Tamil hymns of which 1454 are available. His first three songs were sung 250 years ago at the Congress of Religions in Trichirappalli. His poems follow his own mystical experience, but they also outline the philosophy of South Indian Hinduism, and the Tirumandiram by Saint Tirumular in its highest form, one that is at once devotional and nondual, one that sees God as both immanent and transcendent.
Thayumanavar's key teaching is to discipline the mind, control desires and meditate peacefully. He went on to say that "it is easy to control an elephant, catch hold of the tiger's tail, grab the snake and dance, dictate the angels, transmigrate into another body, walk on water or sit on the sea; but it is more difficult to control the mind and remain quiet".