Meaning and elaboration
Meaning: The one whose very essence is the three Gunas: Sattva, Rajas, and Tamas.
Elaboration
Tri-Gun'atmika means "She whose essence (atmika) is the three Gunas (Tri-Guna)." This name presents Kali as the underlying principle of the manifested universe, in keeping with the understanding of Samkhya as it is taken up within Tantra and Vedanta. The three Gunas, Sattva, Rajas, and Tamas, are the primary constituents of Prakriti, the primordial matrix of nature and matter.
The Gunas as Cosmic Forces Sattva represents purity, light, knowledge, and harmony. Rajas embodies activity, passion, movement, and desire. Tamas signifies inertia, darkness, ignorance, and obstruction. These three Gunas are not merely moral categories. They are fundamental forces present in varying degrees throughout creation, always in motion, always in relationship, and never existing in isolation.
Kali as the Source of Illusion (Maya) and Creation As Tri-Gun'atmika, Kali is the very fabric of Maya, the divine power that veils ultimate reality and brings forth the world of phenomena. From her these three qualities emerge, interact, and subside. She contains them within herself and governs their play, thereby directing the cosmic process of creation, sustenance, and dissolution.
Transcending the Gunas While she is the essence of the Gunas, the deeper truth is that she alone, as Para-Brahman (Supreme Reality), ultimately transcends them. Her fierce and destructive aspect may be understood through Tamas, her creative dynamism through Rajas, and her liberating wisdom through Sattva. Yet she remains beyond all three. Through deep spiritual practice, her devotees too may rise beyond the limitations of the Gunas and attain liberation (moksha).