"Passages" has the appearance of a mountain range with its soaring peaks and a rich blue sky.  Tetrahydrocannabinol  (THC) crystals were grown my evaporation on a glass microscope slide and taken through a microscope. THC is a psychoactive component of the hemp plant and was first domesticated over 12,000 years ago.  Here the crystal facets create the colors by refraction of the illuminating white light as it passes through the crystalline array.