Franklin: You know, I was noticing that pin you wear. All the other Rangers wear one just like it, but I don't know what it means.
Marcus: The two figures on either side: one Human, the other Minbari. They blend together in the middle to signify the two halves of our souls uniting against a common enemy.
Franklin: Hmmm. This jewel?
Marcus: Minbari called that "Isilzha". It means the future, birth, beginnings, dawn of a new age.