Within the universe exists tiny, invisible vibrations which enable life to occur. These vibrations are receptive and they connect mental (active) vibrations to one another through their ability to harmonize. In other words, they are the glue that allows the formation of things, creation - which you know as life, to occur.
Life is the result of being malleable or at ease. These vibrations are coined by vibrational physicists as sympathetic vibrations (to be "in sympathy") and, in a world of feeling, we would recognize these vibrations as compassionate love. Sympathetic vibrations (aka: love) are the great receptive force which forms the bonds which hold your body together - you are literally held together by love!
A Lack of Receptivity Manifests as Illness
Disharmony occurs when the receptive bonds of love in your body break. This is known to you as illness. Illness is caused by stress, a lack of receptivity - an unwillingness to love (to allow). Meditation, Yoga and the deliberate ability to balance the mind body can bring one back into alignment with this force (receptivity).