Because radiation is kind of invisible and there is a lot of hope involved and there are possible side effects and there are also lots of benefits, so you kind of learn how to trust, how to pray in a way. And you got to have patience because you do not know the result until you live through many years. Hopefully you will live another 30, 40, 50 years. So I guess this is what it teaches me. How to be a good human being.