The Mahavidyas are emissaries of Sophia, the Divine Being embodied as the Earth (also known as Gaia-Sophia). The story of Sophia was understood and recorded by the Gnostics in the Story of the Fall of the Wisdom Goddess detailed at www.metahistory.org. To fully understand the purpose of this site, you must read the story.
Sophia is now engaging the collective of humanity (her visionary experiment) to co-create the story of what happens to humanity. She does this in many ways. One of the ways she does this is through energetic influences captured in her personas. These personas are archetypes. They are the goddess Sophia in various costumes. This is her preferred method of interaction. It’s the way she designed (or coded) her experiment and it is the way she has fun.
Sophia’s energy and personality interact in a “step down” method. She steps down a large portion of her energy into her secondary persona or archetype – Kali. The energy of Kali is in turn divided into the ten Mahavidyas – the Wisdom Goddesses. The Mahavidyas are the faces of Kali. Each lunar month, one of the Mahavidyas comes on duty to work on the “painting” of humanity – the creative vision of Sophia. Each Mahavidya has specific aptitudes and interests which weave throughout the month’s moon phases. This is how we are instructed about the processes of life. It also provides a framework through which we create our own lives.
It should be noted that there is another group of archetypes called the Diamond Sky Dakinis who are on duty during the months the Mahavidyas do not rule. This site solely discusses the Mahavidyas.