THC turns into CBD then to CBN i think i might have the cbd an cbn backwards. anyway thc makes you high the cbn is what makes you feel the couch lock buzz. so if you let your crystals turn amber like scrog says then the thc will be turned into the cbd an cbn, alot of people will go 50 percent amber so they still got thc but have a strong couchlock, some people dont let them turn amber its all in preference. does that help?