As a concrete example: * a ca * b ** ba cba ** bb cbb ** bc cbc * c cc
Then C-c / / cbb: * a... * b... ** bb cbb ... * c... This is also true going deeper into the hierarchy: * a ca * b ** ba cba ** bb *** bba cbba *** bbb cbbb *** bbc cbbc ** bc cbc * c cc Then C-c / / cbbb: * a... * b... ** bb... *** cbbb cbbb ... * c... It's just the top-level that gets a special treatment.