The big triple punch combination of "PMS" (phenols, Monoterpenes, and Sesquiterpenes) found in essential oils is probably one of the major aspects responsible for the therapeutic power familiar to essential oil users. Many oils containing PMS have been found to be useful in addressing many illnesses, injuries, and disease conditions. One hypothesis is that this combination offers the following actions:
First, Cleanse Receptor Sites; Phenols and phenylpropanoids (as well as ketones, alcohols and aldehydes) can act to clean receptor sites on the surfaces of cells. This allows the proper transfer of hormones, peptides, neurotransmitters, steroids, and other intracellular messengers.
Second, Deprogram Bad Information: Sesquiterpenes seem to work at a subcellular level by affecting membrane fluidity and facilitating oxygen transfer. Sesquiterpenes may also affect transport of material inside the cell. This allows for access to DNA and RNA which may offer a scientific basis for "deprogramming or erasing the incorrect information from cellular memory" often referred to in holistic healing circles.
Third, Reprogram Correct Information: Monoterpenes, working at both subcellular and intracellular levels, protect against free radical damage and work within cells to produce properly programmed strands of RNA and DNA. This helps insure proper cell-to-cell communication and maintain healthy bodily functions. Many refer to this as "reprogramming the cells."
These three classes of chemical components may be why essential oils sometimes affect a healing that is virtually instant and also permanent. What they simply do is to restore the body back to its natural state of balance and health at the most basic and fundamental levels within the cells. The generational curses mentioned in the Bible (Exodus 20:5, 34:7; Numbers 14:18; Deuteronomy 5:9) that came to us through the genes or our parents are not immutable and incurable, as modern medical doctors believe. These inherited conditions can be reprogramed in the DNA by the actions of essential oils combined with laying on of hands and prayerful intent. The Biblical oils all contain some, if not all, of these constituents. This is one secret to their amazing healing abilities. Science will, in time, produce additional clarification of these processes, but this is our understanding at this time.