Abstract The Pātañjalayogaśāstra concludes with a description of the pinnacle of yoga practice: a state of samādhi called dharmamegha, cloud of dharma. Yet despite the structural importance of dharmamegha in the soteriology of Patanjala yoga, the śāstra itself does not say much about this term. Where we do find dharmamegha discussed, however, is in Buddhist yogacara, and more broadly in early Mahayana soteriology, where it represents the apex of attainment and the superlative statehood of a bodhisattva. Given the relative paucity of Brahmanical mentions of dharmamegha in the early common era, Patanjali appears to adopt this key metaphor from a Mahayana context—and to revise its primary meaning from fullness to emptiness. This article traces the early elaborations of dharmamegha in Buddhist texts, and, drawing on conceptual metaphor theory, lays out four arguments that each, in part, accounts for the stark contrast in how classical yoga and yogacara employ the superlative metaphor of dharmamegha.