Six at the top means:
A vain nature invites diverting pleasures and must suffer accordingly (cf. the six in the third place). If a man is unstable within, the pleasures of the world that he does not shun have so powerful an influence that he is swept along by them. Here it is no longer a question of danger, of good fortune or misfortune. He has given up direction of his own life, and what becomes of him depends upon chance and external influences.