The Yoga of Siddha Thirumular (book – PDF)
Siddhar Thirumoolar, also known as Tirumular, was a Tamil mystic, poet, and saint who lived in ancient Tamil Nadu, India. He is one of the 18 Siddhars, a group of spiritually realised beings in the Tamil Siddha tradition, which is a spiritual and philosophical lineage that stresses the attainment of spiritual enlightenment and physical immortality through yogic practices and alchemy.
Thirumoolar’s life story is shrouded in legend and mythology, and he is often depicted as a divine being who transcended the limitations of the human condition through his spiritual practices. According to tradition, he achieved mastery over his body and mind, attained spiritual enlightenment, and ultimately merged with the divine.
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One of the most prominent figures associated with Thirumoolar’s spiritual lineage is Agastyar (Agastya), who is considered one of the greatest Siddhars in Tamil tradition. Agastyar is believed to have imparted spiritual wisdom to Thirumoolar and guided him on his path to enlightenment.

In Hindu chronicles, Agastya (also spelled Agastyar) is considered a great sage and one of the Saptarishis (seven great sages) in Vedic literature. According to various Puranic and mythological accounts, Agastya is believed to be the son of the sage Pulastya, who himself is one of the ten mind-born sons (Maanasa Putras) of Brahma, the creator god.
Agastya is revered as a prominent figure in Hinduism, known for his wisdom, spiritual knowledge, and contributions to various aspects of Hindu culture and tradition. He is also credited with spreading Vedic knowledge and establishing spiritual practices in different regions of ancient India. While there are variations in the stories and genealogies across different texts and traditions, the association of Agastya with Brahma and the Saptarishis is a common theme in Hindu mythology.
While the specific details of Thirumoolar’s relationships with his gurus and disciples may be subject to myth and legend, the essence of his teachings continues to be preserved and transmitted through the Tamil Siddha tradition, which focuses on direct spiritual realisation and the inner transformation of the individual.
