The third Chakra from the Muladhara is Manipura. It's in the Nabhi Sthana, inside the Sushumna Nadi (region of navel). This has a physical counterpart that is in charge of the liver, intestine, and other organs. This is a critical location. Ten Yoga Nadis, which resemble lotus petals, emerge from this Chakra.
The vibrations formed by the Nadis are symbolized by the Sanskrit letters: —Rö Zö N:ö t:ö T:ö dö D:ö n:ö p:ö Rö Zö N:ö t:ö T:ö dö D:ö n:ö p:ö Rö Zö N:ö t óaü óhaü aü taü thaü daü dhaü naü paü and phaü (óaü óhaü aü taü thaü daü dhaü naü paü and phaü) Dark clouds are the color of the Chakra. There is a space inside that is triangular in shape.
It's called the Agni Mandala (Fire Region—Agni Tattva). The Bijakshara rö (raü), Agni's Bija, has arrived. Vishnu is the presiding deity, and Lakshmi is the Goddess. In the human body, this Chakra corresponds to Svah or Svarga Loka and Solar Plexus.
CHAKRA MANIPURA
Patala Siddhi is achieved by a Yogi who concentrates on this Chakra and gains access to secret jewels as well as being cured of all diseases. Agni would not frighten him in the least (fire). “Even if he is cast into a raging pit, he will not perish” (Gheranda Samhita).
You may also want to read more about Kundalini Yoga and Holistic Healing here.