Swadhisthana, Svadisthana or adhishthana is symbolized by a white lotus within which is a crescent moon, with six vermillion, or orange petals. The seed mantra is Vam, and the presiding deity is Bramha, with the Shakti being Rakini ( or Chakini ). The animal associated is the crocodile of Varuna.
The Sacral Chakra is located in the sacrum (hence the name) and is considered to correspond to the testes or the ovaries that produce the various sex hormones involved in the reproductive cycle. Swadisthana is also considered to be related to, more generally, the genitourinary system and the adrenals. The key issues involving Swadisthana are relationships, violence, addictions, basic emotional needs, and pleasure. Physically, Swadisthana governs reproduction, mentally it governs creativity, emotionally it governs joy, and spiritually it governs enthusiasm.In Tibetan buddhism, this is known as the Secret Place wheel. Below this point the Shakta tantra and Vajrayana systems diverge somewhat.
Source - Wikipedia