A prism is a transparent object with three edges, which can be glass, optical material, etc. The function of a prism is to scatter light. For example, a beam of white light (composed of mixed light and multiple beams of light with different frequencies) irradiates one side of the prism. The light with different frequencies has different refraction angles in the prism. When it comes out on the other side, it will be separated into light with different frequencies (colors).
The meaning of prism tattoo is to tell us that thinking is to learn to have divergent thinking. We can’t stick to one grid. If we think from different angles, we will get different results. If we are more bold, we should concentrate our thinking and often use it in our daily life, work and study.