" Our life on earth, seasoned with prayer, becomes in a manner heavenly. We have through prayer a foretaste of Heaven. For Heaven consists in perfect union with God, in the vision of God, face to face, as He is in Himself; and prayer is only a less perfect union with God: it is the effort of the soul to rise to its Creator by its highest faculties of understanding and will. St. Paul and many servants of God have been rapt up to God in prayer and admitted to the very threshold of Heaven. The lowliest may in some proportion draw near to God by prayer."
Link (here) to the mentioned portion of the writings of Jesuit Bishop George Porter, S.J. his book is entitled,The letters of the late Father George Porter, S.J., Archbishop of Bombay By George Porter.