Verse 33

अथ संकल्पयामास स्वसंकल्पनयैव सः ।वृक्षाग्रमेव संशुद्धं स्थितिस्तत्रोचिता मम

In plain words

Then, by his own saṃkalpa alone, he conceived this saṃkalpa: "Only the crown of a tree is wholly pure; to abide there befits me."