The body is made up of solids, liquids, and gases, which are all in a state of individual vibrations.
The vibration of life current, present as fluid energy, is present beneath the strata of flesh, as is the vibration of subtle human consciousness, which remains isolated from the Cosmic Consciousness due to ignorance.
There is no change or death in Cosmic Consciousness, whereas human consciousness is subject to change and limitation.
The process of freeing the mind entails training it through affirmations, concentration, Yoga, and other methods so that it can gradually shift its focus away from the grosser body vibrations.
Their attendant changes of death, disease, and so on, and toward the subtler and more stable vibration of Life Energy and consciousness on to the Cosmic Consciousness, where there is no consciousness of change, i. e., death, life, and so on.
You may also want to read more about Spirituality and Healing here.
Be sure to check out my writings on Religion here.