Yoga Sutra 3.03 it comes to shine forth as the object alone
Sūtra III.3
That same (meditation – dhyāna), when it comes to shine forth as the object alone, apparently empty of its own nature as knowledge, is called samādhi
That same (dhyāna), when it comes to shine forth in the form of the meditation-object alone, apparently empty of its own nature as an idea, and having entered the being of the meditation-object, becomes it – is called samādhi.
That same, when it comes to shine forth as the object alone, apparently empty of its own nature as knowledge, is called samādhi. That same dhyāna, consisting of the idea-stream, having apparently (iva) given up being a stream of one idea comes to shine forth in the form of the meditation-object is radiant as the form of that object, apparently empty of its own nature of itself as an idea as perceiving, just as a clear crystal shines out as the material on which it has been placed, and is apparently empty of its own nature, and when having entered the being of the meditation-object, that being the cause of the thought, becomes it, that very dhyāna is samādhi.
(Opponent) But it was said previously (sūtra I.1 comm.): ‘Yoga is samādhi’, so samādhi should include all the methods. Yet here it is being taught that samādhi is but one of the methods of yoga. What has happened to the distinction between a method and the totality of all the methods?
(Answer) The answer is, that when it was said ‘Yoga is samādhi’ that was in regard to the particular point of fixing the mind. But here the particular point is the method whereby what was a stream of ideas becomes, from entering the being of the meditation-object, the very form of that object.