चक्षुःप्रकाशासंप्रयोगेऽन्तर्धानम् ॥ ३.२१॥
cakṣuḥprakāśāsaṃprayoge’ntardhānam .. 3.21..
Patanjali Yogasutra Introduction
Part 1 – Samādhi-pāda – Yoga and its Aims
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
1.10
1.11
1.12
1.13
1.14
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1.18
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1.21
1.22
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1.34
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1.42
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1.48
1.49
1.50
1.51
Part 2 – Sādhana-pāda – Yoga and its Practice
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
2.13
2.14
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2.16
2.17
2.18
2.19
2.20
2.21
2.22
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2.25
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2.31
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2.33
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2.48
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2.51
2.52
2.53
2.54
2.55
Part 3 – Vibhūti-Pāda – Powers
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17
3.18
3.19
3.20
3.21
3.22
3.23
3.24
3.25
3.26
3.27
3.28
3.29
3.30
3.31
3.32
3.33
3.34
3.35
3.36
3.37
3.38
3.39
3.40
3.41
3.42
3.43
3.44
3.45
3.46
3.47
3.48
3.49
3.50
3.51
3.52
3.53
3.54
3.55
3.56
Part 4 – Kaivalya-pāda – Liberation
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
4.16
4.17
4.18
4.19
4.20
4.21
4.22
4.23
4.24
4.25
4.26
4.27
4.28
4.29
4.30
4.31
4.32
4.33
4.34
Commentary on Sri Patanjali Yogasutra by Swami Vivekananda
A Yogi standing in the midst of this room can apparently vanish. He does not really vanish, but he will not be seen by anyone. The form and the body are, as it were, separated. You must remember that this can only be done when the Yogi has attained to that power of concentration when form and the thing formed have been separated. Then he makes a Samyama on that, and the power to perceive forms is obstructed, because the power of perceiving forms comes from the junction of form and the thing formed.
Yogasutra – Verse 3.21 – Yogasutra-3.21-kāyarūpa – In Sanskrit with English Transliteration, Translation, Meaning and Commentary by Swami Vivekananda – Yogasutra-3-21