His poems follow his own mystical experience, but they also outline the philosophy of 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.

When he became god-minded he quit his job and began roaming, preaching Saiva Siddhanta philosophy and Shiva worship.

The songs on the theme of the Atman craving for the union with the Supreme, are famous for their authenticity, simplicity and easily remembered language.

Here is one example of Thayumanavar's presentation of the highest thoughts of philosophy in simple Tamil: aRuLāl evaiyum pār enRēn—attai aRiyāde chuTTi en aRivāle pārthēn; iRuLāna poruL kaNDadallāl ennaiyum kaNDilan ennaDi tozhi.

Ever-permanent, without any blemish, without any ignorance, without support, ever-full, undecayingly pure, far as well as near, like the Light beyond the three luminaries (Sun, Moon and Fire), the One Charm that includes all, overflowing with Bliss, undiscernible to mind or speech, standing as the Colossus of Consciousness—on that vastness of the beginning of Infinite Bliss, let us meditate.