Julian Barnes has written on the theme of love in several of his novels. His Levels of Life (2013) describes experiences and feelings of three protagonists resonating with the aftermath of the death of his beloved wife Pat Kavanagh from three vertical and spatial levels of sky, earth and grave. It exposes the levels of life itself by juxtaposing the fictional and nonfictional texts and combining external and internal experiences which are filled with discussions of love. This paper attempts to study the nature of love from three dimensions, namely, love as an imaginative way of existential mode, love as a dialogical ethical paradigm and love as a practical wisdom. Starting from an individual experience, Barnes intends to take love as a way of salvation and belief to form a fundamental paradigm of life that implies both life experience and knowledge, creating an intellectual dimension of emotion.