Based on critical readings of Martin Heidegger’s Being and Time and Aristotle’s Nicomachean Ethics, the paper offers a phenomenological study of the ontology of well-being which transcends the opposition between subjective and objective being. By interpreting the Heideggerian notion of Befindlichkeit as the fundamental way in which humans find themselves in the world, being affected by and faced with their own existence, the paper opens a way to understanding well-being which locates the possibility of elevating one’s own being, not inside or outside the I, but in the affective bond to others called friendship. Aristotle’s reflections on philia play a crucial role for developing this understanding of well-being, according to which humans find themselves well by sharing joy with each other and making a vital contribution to the realization of their own possibilities.