This essay analyzes the provocative image of the bodhisattva, the saint of the Indian Mahayana Buddhist tradition, descending into the hell realms to work for the benefit of its denizens. Inspired in part by recent attempts to naturalize Buddhist ethics, I argue that taking this 'mythological' image seriously, as expressing philosophical insights, helps us better understand the shape of Mahayana value theory. In particular, it expresses a controversial philosophical thesis: the claim that no amount of physical pain can disrupt the flourishing of a fully virtuous person. I reconstruct two related elements of early Buddhist psychology that help us understand this Mahayana position: the distinction between hedonic sensation (vedanā) and virtuous or nonvirtous mental states (kuśala/akuśala-dharma); and the claim that humans are massively deluded as to what constitutes well-being. Doing so also lets me emphasize the continuity between early Buddhist and Mahayana traditions in their views on well-being and flourishing.Keywords Mahayana Buddhism . Buddhist ethics . Buddhism . Ethics . Hell Julia Annas has shown that taking seriously Stoic and Epicurean claims that the sage is happy even while being tortured on the rack helps articulate the structure of their ethics, and in particular the relationship between virtue (arête) and happiness (eudaimonia). In brief, it highlights that for Epicurus, eudaimonia depends on an attitude taken towards one's life as a whole, rather than merely the quality of individual moments of experience, and it shows the emphasis he places on our internal attitude towards external conditions. See Annas (1993), esp. 348-350. For the Stoics, it shows that virtue (arête) alone has value for our well-being, so that no amount of damage to the body can harm us. See Annas (1993), 388-411. The Stoic explanation has much in common with Buddhist attitudes towards pain and virtue (kuśala-dharma) that I explore below, although a comparison between the two traditions cannot be given here.