One Citta makes use of the activities of many Citta.
How does an individual acquire the power of creation of minds.
How does he control them?
The first three Sūtra talk about new body, new birth. Here they talk about a new mind.
Patañjali wants to show these things are possible without an external cause. Even though these things are extraordinary they are still within the rearrangement of Prakṛti into a new body or new mind.
For the latter only Asmitā is essential to make it happen.
When one Citta controls many Citta, his own Citta is called the leading Citta.
Each Citta has different kinds of activities but the leading Citta controls them.
Some people interpret this as the leading Citta being able to control other people’s Citta, people who have weak minds.
This could be done so the leading Citta can rid himself of Karma to be able to experience through other minds.
The people who do this are not necessarily Yogi, but an individual with a strong Asmitā and willpower acquired through previous births, drugs, Mantra or austerities.
Bhoja compares it to the Citta being able to control the Indriya and Prāṇa.
So the Nirmāṇa Citta or leadership Citta is able to coordinate many other Citta.
The Yogi has these capabilities but does not choose to use them.
He only uses his Asmitā to impart knowledge.
Like a person who has seen what is on the other side of the river and describes it before crossing himself.
Or like a plane landing, there are a few bumps before it becomes smooth.
So with the Yogi, Kaivalya and teaching.
Krishnamacharya relates it to the Sāṃkhya and Tamas Ahamkara from which it is possible for you to create minds. But there is no distinction between Puruṣa and Prakṛti. Thus Yoga is to know the distinction.
Also by changing food and the place the mind can be altered.
Thus the Puranic view is the creation by one mind in order to work out Karma either towards Mokṣa or some personal end.
To understand how mind acts on another in another body it should be understood that the mind is naturally all pervading, thus questions on spatial distance or proximity are meaningless.
As the mind of the magician, which acts like the dominant mind, work on the minds of the spectators and producing mass-hypnotism, so does the dominant mind of the Yogin act on other secondary created minds.
The minds so created will have latencies in them and the ability to create minds could be without gaining discriminative knowledge. Thus they are superior and inferior leading Cittas.
Supernormal powers coming with birth and gained through herbs and drugs are of a lower order. Powers acquired through austerity or incantation observed with the specific object of acquiring supernormal powers, though a little superior to others, produce latencies.
But the actions of such devotees will no doubt be more Sattva in nature than those of others.
The constructed mind with discriminative knowledge and without any latency, is endowed with the highest efficiency and with that only best work in the shape of imparting instructions on virtue and piety is possible. Such minds are not assumed for the purpose of enjoyment or for destroying the effects of past deeds.