A MAP OF LIFE external conduct to the internal root of conduct, from actions (commanded or prohibited) to love — a state of the soul : and sins of the mind — or heart — or intention become as serious as sins of the exterior action: the yielding of the mind to lust not only is as bad as adultery, it is adultery; the yielding of the mind to murder not only is as bad as murder, it is murder. The essence of sin is now clear — ^it is the soul of man twisting itself out of the right relation to God. That is sin. Nothing else is. And the laws which express the right relation are all forms of love. So much, for the moment, for the laws to be obeyed. On the truths to be believed — including the minimum requirement of the purpose of man’s existence, of what was in the mind of God when He made man — Christ is equally revealing and equally fundamental. The purpose of man’s existence is to come to Godr" This includes a multitude of things, ^ but^rinapally, because man is an intelligent being, it involves some revelation of the nature of God : the more man knows of his goal, the more likely he is to make for it effectively. Thus He revealed to man that in the divine nature are three persons — God the Father, God the Son, God the Holy Ghost: that He Himself was the Second Person, God the Son. Of this supreme mystery of the Trinity and of mystery in general something will be said in Chapter VIII Here we must consider not the revelation of God that our Lord gave by teaching, 52