Petr’s reference is the Orthodox pope Eastern Orthodox monastics separate themselves from the world in order to pray unceasingly for the world. They do not, in general, have as their primary purpose the running of social services, but instead are concerned with attaining theosis, or union with God. However, care for the poor and needy has always been an obligation of monasticism, so not all monasteries are "cloistered". The level of contact will vary from community to community. Hermits, on the other hand, have little or no contact with the outside world. In general, Eastern Orthodox monastics have little or no contact with the outside world, including their own families. The purpose of the monastic life is union with God, the means is through leaving the world (i.e., the life of the passions). After tonsure, Eastern Orthodox monks and nuns are never permitted to cut their hair. The hair of the head and the beard remain uncut as a symbol of the vows they have taken, reminiscent of the Nazarites from the Old Testament. The tonsure of monks is the token of a consecrated life and symbolizes the cutting off of their self-will.