Niyama in Yoga Sutra emphasizes physical cleanliness, dietetic control and certain aspects of mental training. Niyama puts forward the following five regulations:
i.
Saucha (cleanliness)
ii.
Santosha (contentment)
iii.
Tapas (austerity)
iv.
Svadhyaya (introspection)
v.
Iswarapranidhana (devotion to God)