https://www.gaia.com/article/what-is-alchemy-a-spiritualized-chemistry-for-transformation
All of life is interconnected. Our minds are the galaxies, our fingers and toes are the planets, and our organs are the stars that bring us light and life. We are each an embodiment of the universe, and therefore have the power to improve our lives, conditions, and environments at every turn.
We achieve these things through prayer and meditation, healing and nutritional remedies, and clear and intentional activities. These are the premises behind esoteric or spiritual alchemy, as distinct from those seeking to make gold, known as exoteric, the obsolete branch of alchemy.
Before Chemistry, Islam, and Christianity, there was Alchemy, a system of pre-science assumptions, beliefs, elixirs, processes, and traditions that purported to heal the sick, transform personal relationships, remove mental afflictions, turn metals into gold, change the dynamics of political power, grow allegiances, open hearts, co-create miracles, and even kill. Alchemy was a catch-all for how to gain control of life and its many foes and challenges.
Originally based on what are now widely considered to be disproven scientific principles, the whole of alchemy remains a beautifully woven fabric of fascinating, illuminating, and transformative ideas derived from magic, physics, mythology, art, astrology, and a variety of religions.