purify

(verb) remove impurities from, increase the concentration of, and separate through the process of distillation. Synonyms: sublimate, make pure, distill. Example: "Purify the water."

(verb) make pure or free from sin or guilt. Synonyms: purge, sanctify. Example: "He left the monastery purified."

(verb) become clean or pure or free of guilt and sin. Example: "The hippies came to the ashram in order to purify."