The Happiness of Heaven

I am reading a wonderful book by Fr. Boudreau, The Happiness of Heaven. Here's an excerpt. "What are the personal attributes or qualities in others that make our social intercourse with them a pleasure?... These are virtue, learning, beauty, refinement, mutual love, and the ties of kindred. ... Neither beauty, nor learning, note any other endowment can replace virtue, while it alone can, to a great extent, supply all other deficiencies. ... When we meet with one who is evidently a man of God, one whose every word is instinct with the spirit of God, whose whole exterior betokens the intimate union of his soul with God, in whose very countenance the beauty of angelical purity shines forth, we deem it a happiness to spend a few moments in his society. The pleasures enjoyed in his company are not only exquisite - they are also sanctifying."