peacefrog's lilypad

The "C" is the Islamic crescent. The "o" is the peace symbol. The "e" has both gender symbols in it, but I don't know if it's supposed to represent some specific group/movement. The "x" is the Star of David. I have no idea what the "i" represents. The "s" is the yin and yang, which represents a number of Eastern philosophies. The "t" is the Christian cross. So, I was just wondering what the "e" and the "i" are, since I couldn't figure them out.