Your character gains an additional dot of Chi. All purified begin play with one dot of Chi. However, more experienced and powerful purified have more dots in Chi. During character generation, each additional dot of Chi costs the character three Merit dots. See Effects of Chi (p. 99) for more information about how this Merit affects your character. Purified characters can purchase this Merit no more than twice, for a total Chi of three.
Your character can only purchase additional dots of Chi as a Merit during character creation. During play, Chi can only be increased using experience points.