The idea of naga coin is to use a common motif of a coin as a stand-in for a particular concept or idea and then to use it in your own story. I have a theme for this coin in mind, and it is to remind us that we are not only connected to our physical environment, but we are also connected to our mind as well. We are both a physical and emotional being, and we are connected and interdependent.
The naga coin is a symbol of life. The idea of life is that you are alive, and you are connected to other individuals, both physically and emotionally. You are not alone, you are not a victim; you are an active participant in the world.