| Tantra | The science of using mantra, the sound, and yantra, the form. Refers to an esoteric Indian spiritual tradition. |
| Tantric | Of Tantra; a practitioner of Tantra. |
| Tapovan | A place above Gomukh, on the banks of Gangotri, the glaciatic origin of the river Ganga. |
| Tathwa | Element, as in the five elements; principle or philosophy. |
| Thai Poosam | An important festival held on the day of pushya nakshatra of the Tamil month of Thai (near the full moon day of January-February). Celebrated with great intensity and fervor, it is a day on which many South Indian sages have chosen to leave their body. |
| Thiruvanaikaval | A town near Trichy in South India. |
| Turya | Beyond the three states of waking, dreaming, and sleeping. A transcendental state of awareness and bliss. |
