शरीरवृत्तिर्व्रतम्
In plain words
The working of the body is .
The commentators
Śivasūtra with Kṣemarāja's Vimarśinī
एवमपि च येनेदं तद्धि भोगतः इत्याद्युक्तरीत्या उपनतभोगातिवाहनमात्रप्रयोजनात् देहस्थितिः अस्य न अतिक्रमणीया इत्याह - शरीरवृत्तिर्व्रतम् ॥ २६ ॥ प्रोक्तदृशा शिवतुल्यस्य योगिनः शिवाहंभावेन वर्तमानस्य शरीरे वृत्तिर्वर्तनं यत् तदेव व्रतम् स्वस्वरूपविमर्शात्मकनित्योदितपरपूजातत्परस्य नियमेन अनुष्ठेयम् अस्य । तथा च श्रीस्वच्छन्दे सुप्रदीप्ते यथा वह्नौ शिखा दृश्येत चाम्बरे । देहप्राणस्थितोऽप्यात्मा तद्वल्लीयेत तत्पदे ॥ इत्युक्त्या देहप्राणाद्यवस्थितस्यैव शिवसमाविष्टत्वमुक्तम् । न पुनस्तस्य देहस्थितिव्यतिरिक्तं व्रतमुपयुक्तम् । यदुक्तं श्रीत्रिकसारे देहोत्थिताभिर्मुद्राभिर्यः सदा मुद्रितो बुधः । स तु मुद्राधरः प्रोक्तः शेषा वै अस्थिधारकाः ॥ इति । श्रीकुलपञ्चाशिकायामपि अव्यक्तलिङ्गिनं दृष्ट्वा संभाषन्ते मरीचयः । लिङ्गिनं नोपसर्पन्ति अतिगुप्ततरा यतः ॥ इति ॥ २६ ॥
In plain words
The conduct of the body is the vow. And even so, since, in the way stated in "by which this is, that indeed through enjoyment …" and the like, his only purpose is to pass through the enjoyments that come to him, his standing in the body is not to be overstepped. So he says: For the yogin who is like Śiva in the way described, living with the sense of "I" as Śiva, his conduct, his living, in the body: that alone is the vow, to be kept by rule, by one intent on the supreme worship, ever risen, which is reflective awareness of his own nature. So the Svacchanda, in the words: "As, when a fire is well kindled, the flame is seen in space, so the Self too, even abiding in body and prāṇa, would dissolve into that state," declares that one who stands in the body, prāṇa and the rest, just as he is, is absorbed in Śiva. But no vow other than standing in the body is needed for him. As the Trikasāra says: "The wise one who is always sealed with the mudrās that arise from the body: he it is who is called the bearer of mudrā; the rest are truly bearers of bones." And the Kulapañcāśikā too: "Seeing one whose marks are not shown, the rays speak with him; they do not draw near to one who bears marks, for they are most deeply hidden."