Tantra is a spiritual practice that combines ritual, visualization, and energy work to achieve spiritual evolution. Rituals play a vital role in Tantra as they help to create a sacred space and set the intention for the practice. Here are some examples of rituals used in Tantra:

1. Puja: Puja is a ritual of offering and worship in Tantra. It involves creating an altar with sacred objects and offering prayers, flowers, incense, and food to deities or spiritual figures. This ritual is believed to invoke the presence and blessings of the divine.

2. Yantra ritual: Yantras are geometric diagrams used in Tantra for meditation and visualization. In this ritual, the practitioner focuses on a specific Yantra and recites mantras to connect with the energy and qualities represented by the Yantra.

3. Fire ceremony: Fire is considered a sacred element in Tantra, and fire ceremonies are a common ritual in this practice. It involves creating a fire and offering prayers, mantras, and offerings into the fire. This ritual is believed to purify and transform negative energy into positive energy.

4. Chakra meditation: Chakras are energy centers in the body, and in Tantra, there are rituals to activate and balance these chakras. Chakra meditation involves visualizing each chakra and reciting mantras associated with them to activate and harmonize their energy.

5. Sexual rituals: Tantra is often associated with sexual practices, and there are rituals that involve the use of sexual energy to achieve spiritual evolution. These rituals are only performed by experienced practitioners and involve strict guidelines and boundaries.

6. Mantra recitation: Mantras are powerful words or phrases that are repeated to focus the mind and connect with the divine. In Tantra, there are specific mantras for different purposes, such as healing, protection, or spiritual growth. Reciting mantras is a common ritual in Tantra.

In conclusion, rituals in Tantra are diverse and serve different purposes, but they all aim to connect the practitioner with the divine and harness their energy for spiritual evolution. These rituals require discipline, intention, and a deep understanding of the practice to be effective.