Bhagavad Gita Chapter 6 Verse 18
भगवद् गीता अध्याय 6 श्लोक 18

यदा विनियतं चित्तमात्मन्येवावतिष्ठते।
निःस्पृहः सर्वकामेभ्यो युक्त इत्युच्यते तदा।।6.18।।



हिंदी अनुवाद - स्वामी रामसुख दास जी ( भगवद् गीता 6.18)
।।6.18।।वशमें किया हुआ चित्त जिस कालमें अपने स्वरूपमें ही स्थित हो जाता है और स्वयं सम्पूर्ण पदार्थोंसे निःस्पृह हो जाता है उस कालमें वह योगी कहा जाता है।


Rudra Vaishnava Sampradaya - Commentary

When does a person perfect the practise  of  yoga  or  the  science  of  the
individual   consciousness   attaining   communion   with    the    ultimate
consciousness? The answer  is  when  the  mind  becomes  fixed  and  focused
exclusively on the atma or soul within. Lord Krishna declares that  at  this
time a person can be considered as having perfected yoga.


Brahma Vaishnava Sampradaya - Commentary





The  word  atmany  is  used  by  Lord  Krishna  to  indicate   the   eternal
transcendental abode of the Supreme Lord.


Shri Vaishnava Sampradaya - Commentary





The words atmany evavatisthate means exclusively established in the atma  or
soul. This means the atma has become the highest goal  and  only  object  of
endeavour. When the mind has been so tutored and regimented to be fixed  and
riveted to the atma so that it never strays away; it is  simultaneously  and
automatically weaned from all desires for  sense  gratification  having  not
the slightest interest to enjoy the objects of the senses. Lord  Krishna  is
stating that  at  this  time  an  aspirant  is  considered  to  possess  the
necessary qualifications to begin practising mediation.


Kumara Vaishnava Sampradaya - Commentary
The words atmany evavatisthate means exclusively established in the atma  or
soul. This means the atma has become the highest goal  and  only  object  of
endeavour. When the mind has been so tutored and regimented to be fixed  and
riveted to the atma so that it never strays away; it is  simultaneously  and
automatically weaned from all desires for  sense  gratification  having  not
the slightest interest to enjoy the objects of the senses. Lord  Krishna  is
stating that  at  this  time  an  aspirant  is  considered  to  possess  the
necessary qualifications to begin practising mediation.