On each of the seven days of the week he further prayed that one of the seven gifts of the Holy Ghost might descend upon his soul and drive out of it day by day the seven deadly sins which had defiled it in the past; and he prayed for each gift on its appointed day, confident that it would descend upon him, though it seemed strange to him at times that wisdom and understanding and knowledge were so distinct in their nature that each should be prayed for apart from the others. Yet he believed that at some future stage of his spiritual progress this difficulty would be removed when his sinful soul had been raised up from its weakness and enlightened by the Third Person of the Most Blessed Trinity. He believed this all the more,and with trepidation, because of the divine gloom and silence wherein dwelt the unseen Paraclete, Whose symbols were a dove and a mighty wind, to sin against Whom was a sin beyond forgiveness, the eternal mysterious secret Being to Whom, as God, the priests offered up mass once a year, robed in the scarlet of the tongues of fire.