This explains the behaviour perfectly: From the book CULTS,FAITH,HEALING AND COERCION,
meeting regularly is "a means of instilling commitment and a sense of purpose. A member's emotional state may be highly vulnerable to disruptions of this routine, and a group gathering missed can become a source of distress. As one
longtime AA member noted while describing his despair over everyday problems, "It always feels good to go to a meeting."a FANTASTIC READ
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