Was asked by Nyom
turtle (Binocolar, visitor).
Buddh-ism fades when Dhamma arises. When Ariya Dhamma arises, Buddhism has no more ground. For a person having reached the stream, having gained independency, laid group-identification, doubt and practicing not-benefical rites and rituales, such as Buddh-ism is a pointless objectivication. Having found firm refuge into the Sublime Buddha, Dhamma and Sangha, all kinds of grasping toward what ordinary people hold as their own, calling it Buddh-ism has no more footing.
So if one searches for the line between Buddh-ism and Dhamma, "Change-of-Lineage (gotrabhū)" might be well recogniced as such. Upon it one crosses the line to the path, now no more headed toward world and all it's -isms and their maintaining, households.