The overall aim of the study is to create a theory model of "becoming" as a human being and health care provider in the caring communion at the end-of-life. The theoretical perspective of the study is caring science as it is developed at Åbo Academy University in Finland outlined in Eriksson's theory of caritative caring with focus on caring ethics. The thesis consists of four sub-studies reported as scientific articles and a summary section. The study has an overarching hermeneutic research approach. The sub-studies I-IV are reinterpreted from viewpoint of the overall question. Empirical assumptions could then be discerned from the substance of the four substudies, which raised questions. The answers to these questions were sought in dialogue with selected texts by Kierkegaard and resulted in a theory model. The theory model results in following theses: 1. To "become" as a human being is to remain in an endless guilt. Guilt is a form of love. It is guilt that give strength and willingness to act in love and mercy when caring for patients at the end-of-life. The guilt as love allows becoming as a human being to be at home in love and mercy. 2. The human being's courage is characterized as the willingness to obtain contact with the life of fellow human beings. This courage develops over time to stand for itself, with a foundation of belief in human beings, and resulting in a selfless, loving way to help the patients grieve and reconcile at the end-of-life. 3. To be "touched" can be illustrated as an inner awakening; an inner movement towards consciousness for the examination of the love for one another, and to love unselfishly. 4. The human being's evolution in its own understanding of life occurs in the care of another human being who is at the end-of-life, as well as to be at home in ethos, love and mercy. Becoming in this context means that the human being evolves to become responsive to the heart's inner voice; an inner strength and joy which opens to the eternal and holy. 5. To overcome external obstacles is characterized as serving human beings in a selfless love; a caring in love that has requirements that need to be expressed by what is true, beautiful and good for patients at the end-of-life. An awareness and understanding of what it means to become as a human being and health care provider in caring community can help health care providers to easily focus on the patient.