When thou prayest, shut thy door; that is, the door of the senses. Keep them barred and bolted against all phantasms and images. Nothing pleases God more than a mind free from all occupations and distractions. Such a mind is in a manner transformed into God, for it can think of and understand nothing, and love nothing except God. He who penetrates into himself and so transcends himself, ascends truly to God. – Albert Magnus (the “father of Christian mysticism”)