Tantra is a spiritual practice that originated in ancient India and is rooted in Hindu and Buddhist traditions. It is a path of self-discovery and transformation that aims to unite the individual with the divine. Tantra believes that the entire universe is a manifestation of the divine energy or consciousness, and by tapping into this energy, one can achieve spiritual evolution and liberation.

The main principles and beliefs of Tantra are:

1. Oneness: Tantra sees the universe as a whole and believes that everything is interconnected. It emphasizes the concept of oneness, where the individual is seen as a microcosm of the universe, and the universe is seen as a macrocosm of the individual.

2. Divine Energy: Tantra believes in the existence of a divine energy, known as Shakti, which is present in everything and everyone. This energy is the source of creation, and by connecting with it, one can achieve spiritual growth and enlightenment.

3. Balance of Masculine and Feminine: Tantra recognizes the importance of both masculine and feminine energies and believes that they must be balanced for spiritual evolution. The masculine energy is associated with action, while the feminine energy is associated with receptivity and intuition. Tantra teaches how to balance these energies within oneself to achieve harmony and wholeness.

4. Rituals and Practices: Tantra uses various rituals, practices, and techniques to connect with the divine energy. These can include chanting, meditation, breathwork, and physical exercises. These practices aim to awaken the dormant energy within the individual and channel it towards spiritual growth.

5. Visualization: Tantra uses visualization as a powerful tool for spiritual transformation. By visualizing specific symbols and deities, one can connect with their energy and qualities, and integrate them into their own being.

6. Non-Dualism: Tantra believes in the concept of non-dualism, where there is no separation between the individual and the divine. It sees all aspects of life, including pleasure and pain, as part of the divine experience. Tantra teaches how to embrace and transcend duality to reach a state of non-dual awareness.

7. Spiritual Evolution: The ultimate goal of Tantra is spiritual evolution and liberation. It aims to help individuals transcend their limited sense of self and connect with the divine consciousness, leading to a state of bliss, peace, and oneness with the universe.

In conclusion, Tantra is a spiritual path that embraces the interconnectedness of all things and aims to unite the individual with the divine. Its main principles and beliefs revolve around the concept of oneness, the existence of divine energy, balance of masculine and feminine energies, rituals and practices, visualization, non-dualism, and spiritual evolution. By following these principles, one can achieve spiritual growth and ultimately, liberation.