"Between the anus and the virile organ is the basic center, the Mūlādhāra, which is like a matrix, a yoni (female organ). There is the bulb-shaped 'root' and there is the fundamental energy Kuṇḍalinī wrapped three and a half times around itself. Like a snake, it surrounds the starting point of the three main arteries, holding its tail in its mouth just in front of the opening of the central artery (suṣumnā). (Śiva Saṃhitā)"