The main feature should be the teaching of principles through stories. Don't make it metaphysical at all.
Swami VivekanandaNo one is ever really taught by another; each of us has to teach himself. The external teacher offers only the suggestion, which arouses the internal teacher, who helps us to understand things.
Swami VivekanandaThere is only one Soul in the Universe. There is no 'you' or 'me'; all variety is merged into the absolute unity, the one infinite existence - God.
Swami VivekanandaWhere God is, there is no other. Where world is, there is no God. These two will never unite. Like light and darkness.
Swami Vivekananda