Empty and useless matters

birdsWhen you come out of the church, do not begin to be distracted toward empty and useless matters, lest the devil come and find you occupied with them. It is like when a crow finds on the plain a grain of wheat, before it has been covered with earth, and picks it up and flies off. The devil removes the memory of these words of catechetical lectures from your hearts, and you find yourselves empty and deprived of beneficial teaching. 

St. Symeon the New Theologian