My understanding at this stage:
Alchemy is the ancestor(or one stage of the evolution of) of modern day philosophy,science and religion it is based on the study of affecting change(transmutation) on our external world through science and technology, affecting change(transmutation) on our internal self through spirituality/religion(think Hermeticism) and distinguishing/binding the two by philosophical means.
Relation to Hermeticism (
http://en.wikipedia.org/wiki/Alchemy):
In the eyes of a variety of esoteric and Hermetic practitioners, the heart of alchemy is spiritual. Transmutation of lead into gold is presented as an analogy for personal transmutation, purification, and perfection.[6] This approach is often termed 'spiritual', 'esoteric', or 'internal' alchemy.
Early alchemists, such as Zosimos of Panopolis (c.
AD(CE) 300), highlight the spiritual nature of the alchemical quest, symbolic of a religious regeneration of the human soul.[15] This approach continued in the Middle Ages, as metaphysical aspects, substances, physical states, and material processes were used as metaphors for spiritual entities, spiritual states, and, ultimately, transformation. In this sense, the literal meanings of 'Alchemical Formulas' were a blind, hiding their true spiritual philosophy. Practitioners and patrons such as Melchior Cibinensis and Pope Innocent VIII existed within the ranks of the church, while Martin Luther applauded alchemy for its consistency with Christian teachings.(
http://en.wikipedia.org/wiki/Alchemy)
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On the page there was the picture below from (
http://en.wikipedia.org/wiki/Ramon_Llull) and it seems rather similar to the path of Kundalini also below.
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History- Chakras as a part of Kundalini (en.wikipedia.org/wiki/Kundalini_yoga)
All yoga forms are believed to raise kundalini energy, and have their origins in the pillars and Yoga Sutra of Patanjali, a foundational yoga scripture believed to have been compiled around the 2nd century BCE(BC).[7][8] Based on this foundation, most yoga forms and meditation derive their structure and discipline from the ashtanga 8-limbed approach, which provide guidelines for the austerities of practice.
It is impossible to know much more about the origins of some of the concepts (Egyptians are often cited) due to destruction of libraries/art in the past through human selfishness/stupidity or the very impermanent method of storing information in the physical world.
(Maybe one day we can teleport an extremely powerful telescope far enough away in space/time in have a closer look at our own history as the light from back then reaches the telescope, is this possible do you think Rangerz?).
Also I would term Alexander Shulgin and Albert Hoffman and many other people as alchemists at heart, I would say their work in the laboratory has aided spiritual evolution much more than the invention of spaceflight or modern medicine.
Edit:
(Also you may have noticed my avatar which is a representation/artwork of the legend of Merlin who was a wizard with magic and alchemical talents