The Imitation of Christ
Passage from Book Two, Chapter One
He who learns to live the interior life and to take little account of outward things, does not seek special places or times to perform devout exercises. A spiritual man quickly recollects himself because he has never wasted his attention upon externals. No outside work, no business that cannot wait stands in his way. He adjusts himself to things as they happen. He whose disposition is well ordered cares nothing about the strange, perverse behavior of others, for a man is upset and distracted only in proportion as he engrosses himself in externals. If all were well with you, therefore, and if you were purified from all sin, everything would tend to your good and be to your profit. But because you are as yet neither entirely dead to self nor free from all earthly affection, there is much that often displeases and disturbs you. Nothing so mars and defiles the heart of man as impure attachment to created things. But if you refuse external consolation, you will be able to contemplate heavenly things and often to experience interior joy.