The overall theory can be summed up in one phrase -- you give us your money, and we will teach you how to talk to the spirits (thetans). You have to pay tons of money before the spirits will start talking to you. American Indians can reach the same objective for much less money -- they smoke certain mushrooms and talk to the spirits of the dead. It would cost you no more than $50 to buy a mushroom that puts you on The Bridge to Total Freedom. Just compare it to $500,000 that you have to pay to CoS to get on the same Bridge.