The teachings of Dasha mahavidyas are the oldest form of sadhana/practice and are shared as secret teachings within the tantric path. The Dasha Mahavidyas, meaning the ten great wisdoms, are indeed a profound aspect of tantric spiritual tradition, particularly within the Shakta Tantra, which focuses on the worship of the Divine Mother in various forms. Each of the ten goddesses represents a specific aspect of the supreme cosmic power of Shakti, the female principle, and offers a unique pathway to spiritual knowledge and enlightenment. Here’s an overview of the ten goddesses and the wisdom they impart:

Kali: She is the embodiment of time and the destroyer of evil, teaching the ultimate reality of the universe and helping to transcend time and space.

Tara: Often associated with protection and compassion, her teachings help in overcoming obstacles and navigating through life's challenges.

Tripura Sundari (Shodashi): She represents perfect beauty and the transcendent beauty of the three worlds. Her teachings are about seeing the divine harmony in all things.

Bhuvaneshwari: As the mother, she teaches about the underlying unity of all creation.

Bhairavi: The fierce and terrifying aspect, teaching courage and purification through confronting one's fears.

Chhinnamasta: Represents self-sacrifice and the detachment from the material aspect, emphasizing the importance of self-transformation.

Dhumavati: Her teachings focus on dissolution and the inescapable truths of decay and destruction, leading to a deeper understanding of life and death.

Bagalamukhi: Known for her power to paralyze enemies, her teachings focus on the power of speech and the ability to conquer and control adversities.

Matangi: She teaches about the internal and external purity and the importance of using one’s power of word wisely.

Kamala: Her teachings represent prosperity, purity, and involve both spiritual and material wealth.

The practice and veneration of the Dasha Mahavidyas require deep commitment and spiritual maturity, typically guided by a teacher who can initiate and navigate the Sadhaka (practitioner) through meditative practices of rounding, mantra chanting and gyana (wisdom). The guru-shishya parampara (teacher-student tradition) is crucial as these teachings are esoteric and tailored to the spiritual needs and karmic context of each student.

Each of these goddesses has her own yantra, a geometrical form used in meditation and ritual as a representation of the goddess's energies. Mantras specific to each deity are recited to invoke their presence and aid in spiritual upliftment. The gyana (knowledge) imparted helps in understanding the metaphysical aspects of each form, fostering a profound inner transformation.

This esoteric knowledge emphasizes the internalization of divine qualities, aiming to dissolve the ego and foster a realization of one's inherent divine nature, ultimately leading to moksha, or liberation. The secretiveness of these teachings also emphasizes the seriousness and sanctity of the spiritual path, ensuring that only those who are truly prepared receive them.