Patanjali Yoga Sutra – III – 15

It all happens in a sequence

Kramaanyatwam Parinamanyatve Hetuhu

The Chitta or mind keeps constantly transforming itself. The transformation is faster when there is practice and is slow, taking even lifetimes, without practice. The reality however is that, constant change is happening. The change in one state of the Chitta leads to the changes in the next. It is a continuous process that goes back and forth endlessly. – SS

Patanjali Yoga Sutra - III - 14

The qualities and their substratum

Shantoditaavyapadeshya Dharmanupaati Dharmi|

Born out of a quiet mind, the qualities of the subcoscious mind follow a nature of their own, which is in tune with the changeless sustratum called the self. Dharma is the quality and Dharmi is the substratum. Heat is the Dharma of fire and fire is the Dharmi of heat. When the chitta becomes Satwic, it is well established in the Dharmi or the Atman, which is the changeless substratum that has witnessed all the changes of babyhood, childhood, youth, adoloscence, middle age and later old age.- SS

Patanjali Yoga Sutra - III - 13

What is within changes without too

Etena Bhutendriyeshu Dharma Lakshanaavastha Parinamaha Vyakhyathaha|

When the mind is modified through constant practice of the Yama, Niyama, Asana Pranayama, Pratyahara, Dharana, Dhyana and Samadhi into three states - Samadhi, an experience of dense consciousness, one-pointedness of mind and a cessation of thoughts, the functioning of the sense organse are also transformed.
What happens within is also expressed outside as Dharma, Lakshana and Avastha. With the mental transformation, the sense organs of perception and action also function according to thair dharma or nature and not according to the whims and fancies of the mind. They gain a proper definition of purpose and hence do not go astray. They are well settled in their own positions, contente to be where they are. There is no unchecked desire of its own to be fulfilled. They quieten down their role and obey the wisdom of the intellect-supported mind. - SS