Monks trained from birth can sense the blood in their veins. A person with this power needs no training to do this feat; they are constantly aware of their tissues, the position of their body, their center of gravity, and other such things. This grants them enhanced balance, faster healing, enhanced reflexes, better instincts, a total immunity to poisons, and a complete control over their natural processes. However, until they get a handle on their ability, their senses are raw nerves.