NIYAMA is related your discipline. how are you discipline in your life. discipline means, you have some things for prevent to the unusual work. Gurjeaf says, you should do only that work, that is important. you should dont do any unsual work in your life. As....
Shoucha (Purity) -
This means the purity. Like ahimsa, this purity is also physical, oral and mental. Physical purity is again divided into two parts, outer and inner. Yoga has considered all types of purity and given directions as to how to achieve it. However, Patanjal Yoga does not give detailed description of this. But it is stated in detail in Hatha yoga.
While considering outer purity, Hathayoga describes many processes right from brushing the teeth. The specific powder (churna) that should be used for cleaning the teeth is also mentioned under Shuddhikriya in Hatha yoga.
There are six types of shuddhikriyas for the internal purity. Dhouti, Basti, Neti, Tratak, Nouli and Kapalbhati. We will study in detail all these six shuddhikriyas. Hence, they are not discussed further over here. Just the statement that internal purity has been considered in the minutest detail by yoga is enough.
For oral purity, yoga has given the message that one should not talk too much. Unnecessary use of the tongue is to be avoided and following the yam should purify the tongue.
Santosh (Contentment) -
Contentment is also an important virtue. When we observe the never-ending efforts of all creatures in their day-to-day lives, and think of the purpose behind it, we realise that all these efforts are to gain mental contentment and peace. We try to derive the contentment from outside matters. However, none is aware of the fact that the contentment does not depend upon these outside matters. It is a state of mind. It is not a reaction of the mind on any incident. Hence, it can be controlled irrespective of the incidents. Yoga with the use of this word intends the hidden meaning that one should learn to be happy in what one gets. This attitude will reduce pain and suffering in life. However, there should be mental preparation for this. When this tendency to feel contented is adopted by the mind, the perpetual happiness is not far behind. In fact the root of happiness lies in this tendency of the mind. And the root cause of suffering is in Trishna (thirst).
Tapa (Endurance) -
Tapa means to bear some trouble with a good intention. Even if there is some physical or mental trouble, one should not discontinue his actions, but should continue them. This is known as Tapa. While studying Yoga or practising some yogic process, there may be some physical trouble. One should bear it happily and should pursue his studies. This is tapa.
Swadhyaya (Self Study) -
Ishwar gita while describing swadhyaya has stated that japa is swadhyaya. It includes both shrawan and manan (listening and contemplation). Japa is of two types, oral and mental. Again oral japa is of two types, audible - with loud chanting which can be heard by the others and inaudible - whispers which cannot be heard by others. Mental japa is also of two types - without dhyana and with dhyana. In all these japas, japa without dhyana is considered as the best.
Ishwar Pranidhan (Worship with Complete Faith) -
It means while believing in the existence of God and having faith in his greatness, completely devoting oneself to Him without any expectations in return.