Holism is spoken of frequently in the nursing and medical press, linked with alternative or complementary practices, but on examination appears to have much greater depth. There would appear to be many interpretations of the term, many of which are not made explicit within an article. Holistic health care can only be interpreted in relation to an individual’s perception of holism. This discussion asks that thought be given to what we perceive as reality, and where ‘whole’ begins and/or ends, using a brief, simple review of quantum theory as the basis for the discussion. The concept of spiritual healing, without any religious basis, is introduced in support of a personal interpretation of holistic care.