Study of philosophy and science has a tendency to further perception of truth, and as science has progressed it has gradually receded from its erstwhile crude materialism. The day is not far off when it will be more reverently religious than the church itself. Mathematics is said to be “dry,” for it doesn’t stir the emotions. When it is taught that “the sum of the angles of a triangle is 180 degrees,” the dictum is at once accepted, because its truth is self-evident and no feeling is involved in the matter. But when a doctrine such as the Immaculate Conception is promulgated and our emotions are stirred, bloody war, or heated argument, may result, and still leave the matter in doubt. Pythagoras demanded that his pupils study mathematics, because he knew the elevating effect of raising their minds above the sphere of feeling, where it is subject to delusion, and elevating it towards the Region of abstract Thought which is the prime reality. In this place we are dealing with worlds in particular, and will therefore defer comment upon the remainder of the first 5 verses of St. John’s gospel: “_And Life became Light in man,_ 5) _and Light shines in Darkness._” We have now seen that the earth is composed of three worlds which interpenetrate one another so that it is perfectly true when Christ said that “heaven is within you” or, the translation should rather have been _among you_. We have also seen that of these three realms two are subdivided. It has also been explained that each division serves a great purpose in the unfoldment of various forms of life which dwell in each of these worlds, and we may note in conclusion, that the lower regions of the Desire World constitute what the Catholic religion calls _Purgatory_, a place where the evil of a past life is transmuted to good, usable by the spirit as conscience in later lives. The higher regions of the Desire World are the _first Heaven_ where all the good a man has done is assimilated by the spirit as _soul_ power. The Region of concrete Thought is the _second Heaven_, where, as already said, the spirit prepares its future environment on earth, and the Region of abstract Thought is the _third Heaven_, but as Paul said, it is scarcely lawful to speak about that. Some will ask: is there then no hell?—No! _The mercy of God_ tends as greatly towards the principle of GOOD as “_the inhumanity of man_” towards cruelty, so that he would consign his brother men to flames of hell during eternity for the puerile mistakes committed during a few years, or perhaps for a slight difference in belief. The writer has heard of a minister who wished to impress his “flock” with the reality of an eternity of hell flames, and to demonstrate the fallacy of a heretical notion entertained by some of his parishioners that when sinners come to hell they burn to ashes and that is the end.