The quintessence within alchemy is the complete synergy between the four elements; brining them, or rather, returning them to a state a complete wholeness. Thus this medicine is the whole of the Solve et Coagula(Dissolve and Recombine.) Were the plant is broken down to its fundamental parts, purified, and then brought together in holy matrimony. A process that requires care, patience, wisdom, and surrender.
And as all things were derived from one by the meditation of one, so all things are born from this one thing by adaptation
As a person undertakes the journey of the quintessence, they will without a doubt, experience the hidden reality of the plant as it unfolds within the internal reality.