This simple chant creates a deep clarity in the caster's mind. All outside sounds and sights are blocked out allowing the priest to regain spells or hit points at a 50% faster rate; however, the priest cannot focus on anything outside himself. Anything that disrupts concentration such as an attack on the priest or a conscious action by him breaks the spell. Spells cast on the priest are affected by the om spell. The priest is immune to sleep and charm effects while chanting and receives a +4 on all saving throws that allow Wisdom bonuses; however, the priest forfeits saving throw bonuses for Dexterity or anything else requiring conscious thought. Magical healing is not affected by the spell's increased healing rate.
Notes: Common for priests from a vedic (Indian) culture; otherwise very rare. (Updated from Dragon Magazine.)