Imagine medieval India. In one temple, people worship Shiva; in another, the Goddess. Somewhere else, a teacher transmits a secret mantra to a student. These practices may look very different — yet all of them can display Tantric characteristics.
This is why Hindu Tantra is neither a separate religion nor a single school.
Where Did Hindu Tantra Develop?
Tantric systems developed especially strongly within Shaivism and Shaktism, and later also appeared in certain Vaishnava traditions. They became part of the much broader and highly diverse world of Hinduism.
In some schools, a student could not simply take a book and begin practicing. Important knowledge was transmitted through a guru and initiation, after which the practitioner received authorization to use particular mantras and rituals.
But perhaps the most interesting point is that Tantra gradually became so deeply integrated into religious life that drawing a simple boundary between “Tantric Hinduism” and the rest of Hinduism can sometimes be difficult.
Shiva, Shakti, and Different Paths
Some traditions understood ultimate reality through Shiva, while others emphasized Shakti — divine power, often worshipped in the form of the Goddess. In Bengal, Kashmir, and other regions, distinctive schools developed with their own texts, practices, and philosophical ideas.
For this reason, Hindu Tantra is better imagined not as a separate branch of a tree, but as a network of roots intertwined with many different traditions within Hinduism.
And these roots lead us to one of the most influential Tantric traditions.