Meaning and elaboration
Meaning: Seated in the Triangle, representing the Yoni and the three primary Shaktis of Creation, Preservation, and Destruction.
Elaboration
Trikona-stha means "She who is seated in the Triangle (Trikona)." This name points to one of the most fundamental and potent symbols in Tantric philosophy and sadhana.
The Trikona as a Symbol The Trikona, or triangle, is a foundational form in many Yantras, especially in the Shri Chakra. When it points downward, it symbolizes the Yoni, the divine generative source and the receptive power from which manifestation arises. Its three sides also express the many trinities woven into cosmic existence.
The Three Primary Shaktis (Tridevi) Kali as Trikona-stha is the unified essence of the three primary aspects of the Divine Mother active in the cosmic process: 1. Brahmani (Saraswati): the Shakti of Creation (Srishti), represented by the first side. 2. Vaishnavi (Lakshmi): the Shakti of Preservation (Sthiti), represented by the second side. 3. Rudrani (Kali/Durga): the Shakti of Destruction and Transformation (Samhara), represented by the third side. In her highest reality, Kali contains all three. She is the power that brings forth, sustains, and finally draws all things back into herself.
The Three Gunas The Trikona also signifies the three Gunas, Sattva (purity and clarity), Rajas (activity and passion), and Tamas (inertia and darkness), which make up all manifest reality. Kali as Trikona-stha shows her mastery over these Gunas, for she is both their source and the transcendent reality beyond them.
The Focal Point of Manifestation Seated within this sacred triangle, Kali is the divine energy that sets the creative force in motion. From this primal Yoni, this Trikona, the universe unfolds. For the practitioner, meditation on Kali in the Trikona-stha form becomes a way to awaken one's own creative potency and to understand more deeply the cyclical nature of existence.