
shaucha

shaucha () literally means purity, cleanliness and clearness. it refers to purity of mind, speech and body. "shaucha" is one of the "niyamas" of yoga. it is discussed in many ancient indian texts such as the mahabharata and patanjali's yoga sutras. it is a virtue in hinduism and jainism. in hinduism purity is a part of worship, an attitude or purity of mind an important quality for salvation. purity is a mind pure and free of evil thoughts and behaviors.
"shaucha" includes outer purity of body as well as inner purity of mind. the concept of "shaucha" is synonymous with "shuddhi" (). lepage states that "shaucha" in yoga is on many levels, and deepens as an understanding and evolution of self increases.
"shaucha", or holistic purity of the body, is considered essential for health, happiness and general well-being. external purity is achieved through daily ablutions, while internal purity is cultivated through physical exercises, including asana (postures) and pranayama (breathing techniques). along with daily ablutions to cleanse one's body, the concept of "shaucha" suggests clean surrounding, along with fresh and clean food to purify the body. lack of "shaucha", such as letting toxins build in body are a source of impurity.
"shaucha" goes beyond purity of body, and includes purity of speech and mind. anger, hate, prejudice, greed, lust, pride, fear, negative thoughts are a source of impurity of mind. the impurities of the intellect are cleansed through the process of self-examination, or knowledge of self ("adhyatma-vidya"). the mind is purified through mindfulness and meditation on one's intent, feelings, actions and its causes. 
teachers of the vedanta path of yoga prepare to have holy thoughts and for performing holy actions. students and the young help teachers prepare for worship, building self-control and selflessness. this is to offer a true gift - to offer something without expecting anything in return. sarada devi said "pure mind begets ecstatic love ("prema-bhakti")".
literature.
"shaucha" is included as one of five "niyamas" in yoga, that is activity that is recommended for spiritual development of an individual. verse ii.32 of yogasutra lists the five "niyamas". in verse ii.40, patanjali describes outer purity, while verse ii.41 discusses inner purity, as follows:
"shaucha" is one of the ten "yamas" listed by śāṇḍilya upanishad, as well as by svātmārāma. it is one of the virtuous restraints (yamas) taught in ancient indian texts. the other nine yamas are ahiṃsā (): nonviolence, satya (): truthfulness, asteya (): not stealing, brahmacharya (): celibacy chastity and fidelity, kṣamā (): forgiveness, dhṛti (): fortitude, dayā (): compassion, ārjava (): sincerity and non-hypocrisy, and mitahara (): moderate diet.
the epic mahabharata mentions the virtue of purity ("shaucha") in numerous books. for example, in book 14 chapter 38, it lists "shaucha" as a high quality found in the liberated, happy and dharmic person,
bhagavad gita describes purity at three levels in book 17, verses 14-16, namely body, speech and thoughts. purity of body comes from cleanliness of body as well as from what one eats and drinks. purity of speech comes from being truthful and through use of words that are not injurious, hurtful or distressing to others or self. purity of thoughts comes from reflection, peace of mind, silence, calmness, gentleness and purity of being.
purity of mind, speech and body has been one of the important virtues in indian philosophy.

