Sexual practices (known as heqi, or 'The Union of the Breaths') were not part of Celestial Master Daoism. While the School of the Naturalists (and offshoot schools) advocate not ejaculating during sex in order to 'nourish the brain,' the Celestial Masters frowned upon this, and simply advocated celibacy as a way to avoid losing qi. In addition, the Celestial Masters thought that the macrobiotic method of stealing a woman's qi to replenish the man's own qi was completely wrong, and should not be practiced.