Anyone who has the habit of speaking before God's majesty as if he were speaking to a slave, careless about how he is speaking, and saying whatever comes into his head and whatever he's learned from saying prayers at other times, in my opinion is not praying. Please, God, may no Christian pray in this way.
Teresa of AvilaIf God should desire to raise us to the position of one who is an intimate and shares his secrets, we ought to accept this gladly.
Teresa of AvilaKeep this in mind, for it is very important advice, so do not neglect it until you find you have such a fixed determination not to offend the Lord that you would rather lose a thousand lives and be persecuted by the whole world, than commit one mortal sin, and until you are most careful not to commit venial sins.
Teresa of Avila