This study aimed to describe how 10 Norwegian women diagnosed with breast cancer experienced living with the disease. A qualitative method was used, including open-ended in-depth interviews based on principles in Grounded Theory. Data revealed that existential awareness was a central phenomenon in the women's experience. This central finding created the basis for the core category in data: the will to live. This core category includes existential aspects such as different levels of life expectations, the fight against death, life related to the future, religious beliefs and doubts, and increased awareness of values in life. Knowledge and an understanding of how women experience being diagnosed with cancer are prerequisites for supporting the women in a process of normalization. This study has shown that the existential aspects connected with the core category, the will to live, are a central issue in recovery and survival. The study suggests that health professionals, by increasing their awareness of existential aspects connected with the will to live, can assist women and their families in developing coping strategies.