Śrīmad-Bhāgavatam · Text 10.20.39
Who is speaking and story frame
शनै: शनैर्जहु: पङ्कं स्थलान्यामं च वीरुध: ।
यथाहंममतां धीरा: शरीरादिष्वनात्मसु ॥ ३९ ॥
śanaiḥ śanair jahuḥ paṅkaṁ
sthalāny āmaṁ ca vīrudhaḥ
yathāhaṁ-mamatāṁ dhīrāḥ
śarīrādiṣv anātmasu
Gradually the different areas of land gave up their muddy condition and the plants grew past their unripe stage, in the same way that sober sages give up egotism and possessiveness. These are based on things different from the real self, namely, the material body and its by-products.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.