As we know, there are many definitions of love. In his work titled The Erotic Phenomenon, Marion offers us his own concept of love within a philosophical framework: here, the real question concerns the constitution of the ego, based on the being different from myself, on their gaze, on their desire linked to their body (or flesh), and on their relationship to the world (the beloved other). The problem of otherness, (re)linked to that of the ego and its self-awareness, recurs here perpetually. Love, in all its forms, is more than a desire, more than a union; it is the constitution of one's own self, of the phenomenon of love within oneself-love is a gift-Marion emphasizes. We break with modern philosophies in the classical sense-such as Cartesian, Husserlian, and Heideggerian ones-in that they do not provide a true definition of love, nor of the ego. It is a true moment of discovery that speaking of love will be done through the phenomenology of love. This stands in contrast to the well-known philosophies (Descartes, Husserl, Heidegger) to which we refer.