From the moment the World Health Organization (WHO) declared the coronavirus (COVID-19) a global pandemic, intensive care unit (ICU) nurses struggled to care for the COVID-19 patients. As the pandemic became increasingly critical, the task of daily care for critically ill patients fell upon the shoulders of ICU nurses. Understanding the lived experience of ICU nurses, as well as their perception of the experience, is important to identify key lessons to further improve ICU nurses' psychological well-being and resilience. This study explored the lived experiences of ICU nurses who cared for COVID-19 patients using exploratory manifest qualitative content analysis. The findings of this study revealed that these ICU nurses offer important information concerning the crucial role of nurses' family support and religious-spiritual practices in helping them to maintain well-being and cope with the intense situations caused by the pandemic. The lessons emerging from the study findings show that family support and religious-spiritual practices are resources for coping and resilience in times of future pandemics. This implies that ICU nurses who provide care during stressful emergency surges require relief by nurses working in other areas to provide them the opportunity to rest, reconnect with family and become emotionally re-energized.