Since a crystal prism refracts sunlight, it may signify radiant light that arrives from the Upper World to infuse light into your mind and into your life.
A prism may point to the many facets of the personality or the soul. As it creates rainbows, a prism may represent a tool for creating a bridge into another dimension of spiritual experience.
[1]Points to a situation that has many facets, as in Crystal and rainbow, Multiplicity.
A symbol of unity and of collecting what is scattered.
[2]Crystal prisms are figurative of exalted wisdom
[3]