I think that the spiritual father must first be knowledgable. He must know the dictates of the church, as well as the methods to have you as his son start hitting the mark for the path to God. He must be understanding, tolerant, but not wishy-washy. He must call out a sin when he sees it and mark that for forgiveness and correction. He should not be cruel. I heard of a spitiual father denying his penitent the sacraments for two years over something that I would consider minor in comparison to my faults. One must remember that the father is not there to make you feel good, but there for you to follow his guidance toward God and away from free will tainted by the cloven-hooved one. I do not think he should be friend necessarily, like a father whom you love but would not go out on a double date with. That is it in a nutshell wisom from Ron.