Holistic Life Coaching is actually integrating two facilities.   

The term Holistic pertains to all of something.  A Holistic Coach addresses the whole person: Mind, Body, and Spirit (Intuitive, Mental, Emotional, Spiritual, and Physical).  Holistic can also be considered a spiritual approach to personal conflict resolution; in addition to, an alternative / preventative health modality.

A Life Coach is one who assists with the personal achievement of others.

Therefore, a Holistic Life Coach is one who helps others overcome personal conflicts / challenges to balance the mind, body, and spirit energies to achieve a fulfilled life.