Verse 61

इति वर्षसहस्राणि देहा जगति योगिनाम् ।न क्लिद्यन्ते न भिद्यन्ते मग्नवज्जलदा इव

In plain words

So, for thousands of years, the bodies of yogins in this world neither rot away nor are broken apart -- like rain-clouds, as though submerged.