Human life is a valuable treasure: - every moment is meant to be devoted to the remembrance of God; hence it should not be wasted. Carefully devote every single moment to contemplation in God and to His service. Engage yourself constantly in service of God, not only through the body and speech, but through the mind as well. Keep it under observation, watch it, take care that no thief enters the chamber of your heart. Drive out those that are already lurking there and let not enter it again.
Passion, anger, pride, hypocrisy infatuation, envy, jealousy and ill will-- these are the principal thieves that steal the treasures of your mind. Note each one of them and wherever you find them lurking, try to drive them out that very moment. Remember, so long as your mind is haunted by those evils, you are far away from God.