There are various kinds of purificatory rituals associated with death ceremonies. The purificatory, or cathartic, virtues are a condition for assimilation to the divinity. This is considered a purificatory practice. Achaman is purificatory and conducive to peaceful attitude of mind. There Zeus himself performed purificatory rites on Apollo. He composed dedicatory and purificatory hymns and prose treatises, and oracular responses. Some 42,000 victims were enrolled in the Samchung re-education camp for "purificatory education". The bloodletting-rituals (see below) may also have had a purificatory function.