" ... the real elixir will, in one instant, cause the substance of copper to attain the state of gold ..."

 

photo by Trina G. 

"For instance, consider the substance of copper. Were it to be protected in its own mine from becoming solidified, it would, within the space of seventy years, attain to the state of gold. There are some, however, who maintain that copper itself is gold, which by becoming solidified is in a diseased condition, and hath not therefore reached its own state.

Be that as it may, the real elixir will, in one instant, cause the substance of copper to attain the state of gold, and will traverse the seventy-year stages in a single moment. Could this gold be called copper? Could it be claimed that it hath not attained the state of gold, whilst the touchstone is at hand to assay it and distinguish it from copper?"

Bahá'u'lláh, The Kitáb-i-Íqán

www.bahai.org/r/851826550