This paper investigates Søren Kierkegaard’s concept of the self in his subjective thought, along with its implications for spiritual education. First of all, I argue that spirituality plays an essential role in life education. Apart from the meaning of spirit and spirituality, the development of spiritual education reveals that spiritual thought is unique and sacred. Second, by interpreting Kierkegaard’s ideas on the self and subjectivity, this paper points out his vision of spirtuality and the meaning of a human being as a subjective existence. Third, this paper explores Kierkegaard’s reflections on subjectivity in relation to the self, others and transcendence. Hence, the aim of this paper is to utilize Kierkegaard’s existential thought of selfhood to spiritual education in Taiwan, providing a richer and more comprehensive perspective on spirituality. It concludes by expecting students to become spiritual subjects and lifelong learners.