Sīlavisuddhi

sīlavisuddhi (Skt. śīlavisuddhi; T. tshul khrims rnam par dag pa ཚུལ་ཁྲིམས་རྣམ་པར་དག་པ་; C. jingjie) is translated as "purification of conduct," "purification of ethical conduct," etc. In the Pali tradition, sīlavisuddhi is identified as the first of the seven stages of purification on the path to liberation, as presented in the Visuddhimagga.

Buddhism: One Teacher, Many Traditions states:

Purification of ethical conduct (sīla visuddhi) is the higher training of ethical conduct. There are four ways to accomplish it. (1) The ethical conduct of restraint is taking and living in precepts, which prevents physical and verbal nonvirtues. (2) The ethical conduct of restraining the senses involves practicing mindfulness and introspective awareness to avoid attachment to attractive objects and aversion toward unattractive ones. (3) The ethical conduct of pure livelihood is to receive the four requisites in an honest and nonharmful way. (4) The ethical conduct of proper use of requisites is to use the requisites after reflecting on their purpose, shedding attachment, and dedicating for the donors’ welfare.

The four requisites are: alms food, robes, dwelling places and medicine. With regard to the fourth type of ethical conduct: "Alms food is to be consumed merely to support the body. Robes are to be used merely to protect the body from heat and cold. Dwelling places are to be used merely to protect the body from the elements and to encourage solitude. Medicine is to be used merely to alleviate symptoms of illness and pain so that the monk may pursue the religious life."

Sources

• Buswell, Robert E.; Lopez, Donald S. (2014), The Princeton Dictionary of Buddhism, Princeton University 
• Dalai Lama; Thubten Chodron (2014), Buddhism: One Teacher, Many Traditions, Wisdom Publications