Verse 37

त्रिविधं तु परित्यज्य रूपमेतन्महामते ।संकल्पः परमायाति पदमात्मपरिक्षये

In plain words

But, O great-minded one, having cast off this threefold form entirely, Saṅkalpa comes to the supreme state — in its own utter wasting-away.