"Tirumular" authored the Tirumantiram, which is a well known Tamil text. The Tirumantiram is still chanted in Tamil Nadu. It covers a wide variety of topics and illuminates much of the esoteric mystical insight of this Sampradaya. It illustrates the life style and moral conduct advocated by this tradition. It provides much insight into the mystical meditations and tantras (techniques) valued by the Nandinatha Sampradaya. It places great emphasis on repetition of the panchakshara (or five lettered) mantra: Om Namah Shivaya