If Life involves a series of Chemical Reactions such as the Redox or Oxidation-Reduction Chemical Reactions, the same dynamic process continues into Death causing changes to promote Regeneration, Rejuvenation, Renewal, and Rebirth. Spirituality has to be stated as the Dynamic Force that promotes Peace, Harmony, and Tranquility in the material transformations described as Life and Death.
I ask my readers to make the three fundamental distinctions; 1. Essence vs Existence, 2. Heredity vs Inheritance, and 3. Parasitism vs Spiritualism.