Tool has never had any sort of blatant occult influences in their work. If anything, its more about buddhism and kabbalah. Danny is into the occult, and thats good for him, thats his interest. They are not telling anyone to worship the devil or conjure forces from the dark. They tell people to be positive and at the same time say there is a dark side to life. They only speak the truth, with the good comes the bad.