अभ्यासवैराग्याभ्यां तन्निरोधः।।

vritti-nirodhaH / वृत्ति-निरोधः

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Aphorism 2 of Samadhipad / समाधिपाद - 

योगश्चित्तवृत्तिनिरोधः।।२।।

Defines Yoga as The stoppage of vritti / वृत्ति. In order to enter consciousness deeper, the present state of the mind (vritti / वृत्ति) needs to be effectively suspended, so that another dimension of the consciousness may open up. This is precisely what is meant by the :

vritti-nirodhaH / वृत्तिनिरोधः.

This has to be done with the help of the two means : practice (अभ्यास) and vairagya (वैराग्य) -- dispassion and indifference towards the enjoyment of all the sensory pleasures.

Shrimadbhagvad-gita / श्रीमद्भगवद्गीता,

Chapter / अध्याय 6 Stanza / श्लोक 35 :

असंशयं महाबाहो मनो दुर्निग्रहं चलम्।।

अभ्यासेन तु कौन्तेय वैराग्येण च गृह्यते।।३५।।

This is how the vritti-nirodhaH / वृत्ति-निरोध is done. One has to control the mind with the help of the mind itself! Practically a conflict indeed!

The one who still insists upon this way of controlling the mind is fit for this kind of Yoga. 

The one who can at once see the paradox /  the contradiction, may have quite a different approach and another mind-set.

One who has a strong sense of doer-ship, this kind of determination will readily accept the challenge, while the another would rather like to ask the question - "what exactly the mind is?" and try the path of enquiry.

The first has the कर्म-निष्ठा / karma-nishtha -

Trust in Action. 

The other has the ज्ञान-निष्ठा / jnAna-nishtha -

Trust in Wisdom. 

The two approaches are entirely different and together are called सांख्य and योग . The first is the Yoga of Action, and another is the  Yoga of Wisdom.

Basically the two are mutually independnt from one-another and that is the root-cause of the conflict. 

Still, the right state of the mind is required and is necessary to follow any of the above approaches so that the vritti / वृत्ति  may come to an end.

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