Cudapanthaka was slow-witted, and unable to learn even a  single verse.  But the Buddha, using skillful means, taught him to sweep  the floor (in some versions, to wipe) while repeating a simple verse:  “Sweeping the ground, sweeping the ground, sweeping the ground of the  mind” to focus his mind.  He swept away his greed, anger and  ignorance.  After the dust of his minds’ delusions were swept away, he was able to give others a clean environment in  true Bodhisattva fashion.  This simple  and direct method led him to enlightenment. Bodhisattvas practice “Dana”, by giving help to others they give away  the delusion and attachment.