The importance of the Natural Law
In the first book, Lewis analyzes what he calls to be the Natural Law. According to him, the Natural Law represents the sense of justice and the innate feeling everyone has. The Natural Law is universal and there are various beliefs such as the idea that killing is wrong that are found in every culture and country on this earth. For Lewis, the presence of the Natural Law proves that humans were created by a being that has the same set of ideas and beliefs. Lewis points out that if humanity were to appear out of however, then we probably would not have the sense of morality we all do and that our way of thinking would be extremely different.
Misconceptions about Christians
As a former atheist, Lewis knows about various ideas the rest of the world has about Christians. Those who have another religion or those who disregard religion in general perceive religious people as being innocent to a fault and as being ignorant to the scientific aspects and proofs we have today. Lewis debunks these ideas and also the idea that religion is fundamentally easy to understand. He talks about what is means to believe in something that cannot be proven scientifically and also the complexity of religious belief. Through this, Lewis wants to highlight the idea that religious people are not as weak minded as they are sometimes perceive and that believing in a higher power is actually a sign of a great mind and intelligence.
The true nature of God and the Devil
Another major theme found in the book is the question regarding God’s true nature. Lewis analyzes various ideas about divinity people had in time and the idea Christianity has about God. Lewis mentions the Pantheist idea and how they believe God to be neither universally good or evil an then the dualist idea claiming that there is a God who represents goodness and a God who is completely Evil and that the two are qual. Lewis claims both idea to be wrong and he presents the Christian point of view, according to which God is only good, without any type of evilness in him and that Satan is a someone corrupted by evilness. The difference between this point of view and dualist stands in the idea that Christians do not see the Devil and God as being equals and that they consider the Devil to be a creature created by God who strayed from the path he was supposed to walk on.
