In Hindu tradition, all important events begin by invoking Ganesha, the elephant-headed "magical child" of the Great Goddess.
The Mantra: "OM SHRI GANESHAAYA NAMAH!"
Ganesha is the "Remover of Obstacles." He has many forms and his essential quality is child-like and playful. His principle consort is Siddhi, the goddess-embodiment of spiritual powers. Tantras declare that Ganesha "gives knowledge to the seeker of wisdom, prosperity to those in need of worldly gain, children to the childless and spiritual liberation to those in search of salvation."
Ganesha rules over the "base" or "sex" center (muladhara chakra) of Tantric tradition.