Purpose: The purpose of this study was to explore the spiritual nursing experiences of nurses caring for end-of-life patients. Methods: In-depth interviews were conducted with eight nurses with more than five years of work experience at various types of hospice-specialized institutions from August 6, 2021, to September 10, 2021. The collected data were examined and described based on Colaizzi’s phenomenological method. Results: Thirteen clusters of themes and five categories were derived from the spiritual nursing experiences of nurses caring for end-of-life patients. The five categories were “Recognizing being a whole person,” “Deriving the underlying suffering,” Joining in spiritual healing,” “Carrying out one’s task by calling,” and “Growing through the accumulation and reflection of experience.” Conclusion: Spiritual care is an important task that must be provided for end-of-life patients. For nurses caring for end-of-life patients, spiritual care is the process of accompanying a patient as a soulmate for a better death, and it is meant as a practice of true love where people deal with spiritual suffering together. The findings of this study will guide nurses caring for end-of-life patients to provide appropriate spiritual care.