Relating to or concerned with wholes or with complete systems, rather than with the analysis of, treatment of, or dissection into parts. The whole is considered to be a collection of interdependent parts.
The principles of palliative care are framed around holistic care and its interdependent physical, social, emotional, cultural, and spiritual aspects.

Holistic medicine is a form of healing that considers the whole person — body, mind, spirit, and emotions — in the quest for optimal health and wellness. According to holistic medicine philosophy, one can achieve optimal health, the primary goal of holistic medicine practice, by gaining proper balance in life.

Holistic medicine practitioners believe that the whole person is made up of interdependent parts and if one part is not working properly, all the other parts will be affected. In this way, if people have imbalances (physical, emotional, or spiritual) in their lives, it can negatively affect their overall health.

Adapted from WebMD. What is holistic medicine? Internet. Accessed on July 4, 2016.