tebhyaḥ samabhavat sūtraṁ
mahān sūtreṇa saṁyutaḥ
tato vikurvato jāto
yo 'haṅkāro vimohanaḥ
tebhyaḥ - from those modes; samabhavat - arose; sūtram - the first transformation of nature, endowed with the potency of activity; mahān - primeval nature endowed with the potency of knowledge; sūtreṇa - with this sūtra-tattva; saṁyūtaḥ - conjoined; tataḥ - from the mahat; vikurvataḥ - transforming; jātaḥ - was generated; yaḥ - which; ahaṅkāraḥ - false ego; vimohanaḥ - the cause of bewilderment.
According to Śrīla Śrīdhara Svāmī, sūtra is the first transformation of material nature that manifests the potency of activity, and it is accompanied by the mahat-tattva, which is endowed with the potency of knowledge. In the material world, one’s real knowledge is covered by fruitive activity and mental speculation. As one’s devotional service to the Lord slackens, these two tendencies grow automatically, just as the diminishing of light automatically brings an increase in darkness.