Once upon a time, a wet nurse was walking along the road with a child in her arms. She became also weary that she fell asleep on the way. Then a man appeared and gave the child some happy pills. Being gluttonous, the child was lured by the good taste and knew nothing about his intentions. The man forthwith stripped the child of his necklace, brooches and garments.
This is also held to be true with the monks.
Intent upon worldly interests and noisy places, those who are greedy for a little gain and support are drawn to temptation while a thief steals their spiritual credit and treasured commandments. They are just like that greedy child whose belongings are taken away by the thief, due to the enticement of some tasteful pills.