Tantric Sadhana is the spiritual practice of a sadhaka (adept) which leads to Self-realization and to become Tantrika in life.
Tantrism is an initiatory spiritual path and at the same time it is a "spiritual practice" applied to life.
TANTRIC ALCHEMIC RITUALS
Tantric rituals are the least understood of the whole tantric tradition but they are the most alchemical and magical part that include practices reserved only for initiates.
These rituals cannot be revealed as they could not be received with sacredness by people who do not follow the tantric path.
Some of the less understood secret rituals are: Maithuna, Cakra Puja, Yoni Puja, Lingam and Yoni Puja.