The first design is based on a the principle of light through a prism. Each of the faces represent a different sect of humanity as well as a beam of light. They all meet in the center and converge into a single white beam of light, as it would being sent through a prism. This symbolizes a merging of beliefs, peoples, cultures, etc. for a sense of "global harmony," as stated above and below on the design.
The second design features the word "UNITY" in various languages from around the world. The message behind this is that each country can still retain a sense of identity and nationality but also be apart of a larger global scene. Each language is colored by that languages primary country's flag to further establish this idea.