This study attempts to contribute to the knowledge of caring science and mental health care by means of a profound understanding of the patients' existential world when being a mother in receipt of psychiatric care, with focus on inner processes such as health and suffering. Mothers struggle to cope with the demands of the illness and the responsibility for their children. They see themselves through their children and regard the child as an important part of themselves. Mothers experience guilt and shame related to motherhood, and when they have to relinquish their responsibility as a mother, they consider themselves a failure. Despite a range of practical and emotional difficulties, motherhood involved extremely positive experiences, which provide a purpose as well as fulfilment and meaning in life.