Non-Dual Shaivism, also known as Kashmir Shaivism, is a philosophical and spiritual tradition that originated in the Kashmir region of India. It is based on the concept of consciousness as the ultimate reality, and its principles revolve around the understanding and experience of this consciousness.

The first principle of Non-Dual Shaivism is the concept of Shiva, which refers to the ultimate reality or pure consciousness. In this tradition, Shiva is not seen as a deity, but rather as the essence of all beings and the source of all existence.

The second principle is the concept of Shakti, which refers to the dynamic and creative aspect of Shiva. Shakti is the power that emanates from Shiva and manifests in the world as the diversity of forms and experiences.

The third principle is the concept of Maya, which refers to the illusion of duality and separation that exists in the world. According to Non-Dual Shaivism, this illusion is caused by the limited perception of the individual mind, which creates the illusion of a separate self.

The fourth principle is the concept of Spanda, which refers to the pulsation of consciousness. Spanda is the continuous movement and vibration of consciousness, which creates the appearance of the world.

The fifth principle is the concept of Anuttara, which refers to the highest state of consciousness. Anuttara is the state of pure awareness and bliss, beyond all limitations and dualities.

The sixth principle is the concept of Pratyabhijna, which refers to the recognition of one's true nature as pure consciousness. This recognition is achieved through self-inquiry and spiritual practices, leading to the direct experience of one's true self.

The seventh principle is the concept of Prakasa, which refers to the self-illuminating nature of consciousness. In Non-Dual Shaivism, consciousness is seen as self-aware and self-luminous, and it is the source of all knowledge and understanding.

The eighth principle is the concept of Vimarsa, which refers to the self-reflective nature of consciousness. Vimarsa is the ability of consciousness to reflect upon itself and become aware of its own existence.

In summary, the main principles of Non-Dual Shaivism revolve around the understanding and experience of consciousness as the ultimate reality. This tradition teaches that through self-inquiry and spiritual practices, one can transcend the illusion of duality and realize their true nature as pure consciousness.