Should I keep contact with my morally questionable and mystical father?

Recently, I initiated contact with my father. I've not seen or spoken to for most of my life. He left behind him a lot of damage, and I was very hurt by that. I made amends with him, thinking that he was in recovery. However, I recently discovered his eastern mystic philosophy. Also, although he is fully recovered, he still has moral problems. Now I'm second guessing my decision. Would it be immoral for me to break off the contact with him after I've made peace with him? Should I preserve the relationship to keep my character intact? Or should I cut ties with him, on the principle that I should only maintain relationships of value to me?