Introduction: Critical care nurses possess competence in caring, leadership skills, teaching skills, and consultative skills. Caring for a patient provides experience and insight which creates behaviour that guides the nurse to deal with the specific situations in a particular way. These experiences can be used as a basis for improving patient care. Much attention is being focused on the nurse’s role to assist the physician in providing care to patients; little attention is being given to the nurse’s psychological, spiritual, and emotional well-being while dealing with critically ill patients, especially the dying ones. Aims: The aim of the study was to explore the lived experiences of nurses caring for critically ill patients. Methods: Phenomenological research design was used to conduct the study. Purposive sampling was used to collect the data from 14 critical care nurses meeting the inclusion criteria. In-depth, face-to-face interviews were conducted which were audio recorded. Colaizzi’s framework was used to analyse the data. The level of trustworthiness was established by using the Lincoln and Guba framework. Result: Four themes and twelve subthemes were extracted from the study: Commitment to care, an ICU nurse and their family members, Challenges for ICU nurses, and Coping mechanisms. Conclusion: The study provided more profound insights into lived experiences of nurses caring for critically ill patients admitted to the ICU. Nurses face challenges in day-to-day life while managing critically ill patients. Several factors responsible for the stress of the nurses were revealed from the statements of the participants. The findings revealed that proper utilization of resources, effective coping strategies, a good working environment, training sessions, and improved staff ratio can be necessary to provide effective and quality care to the patients.