the imitation of Christ, the 3rd book: chapter liii (that the grace of God does not join itself to those who mind earthly things)

THAT THE GRACE OF GOD DOES NOT JOIN ITSELF TO THOSE WHO MIND EARTHLY THINGS “” My Son, precious is My grace, it suffers not itself to be joined with outward things, nor with earthly consolations. Therefore, you ought to cast away all things which hinder grace, if you long to receive the inpouring thereof. [...]