According to the philosophy of Tantra, the entire universe is a manifestation of pure consciousness. In manifesting the universe, this pure consciousness seems to become divided into two poles or aspects, neither of which can exist without the other.
One aspect, Shiva, is masculine, retains a static quality and remains identified with unmanifested consciousness. Shiva has the power to be but not the power to become or change.
The other aspect, Shakti, is feminine, dynamic, energetic and creative. Shakti is the Great Mother of the universe, for it is from her that all form is born.
All that is found in the cosmos can be found within each individual, and the same principles that apply to the universe apply in the case of the individual being.
Kundalini Shakti is a sexual energy; Kundalini Shakti is conceived as a goddess, then, when it rises to the head, it unites itself with the Supreme Being, Lord Shiva.
The aspirant becomes engrossed in deep meditation and infinite bliss. This raw energy is the secret “tool”, which, when awakened, has the power to transform an individual from ordinary to exceptional.