In this lecture at King's College London, Hamza Andreas Tzortzis addresses three main topics.
The first is an existential point and involves the absurdity of life without God. If we can't answer the fundamental questions in life then can we ever be happy?
The second topic was that God is a reality. Hamza introduces how God's existence is self evident and addresses the concept of a properly basic belief, which means that the believer in God is intellectually justified in his or her belief even without inductive or deductive evidence. This is similar to the axiom that the world is real. He then introduces the argument from consciousness by arguing that materialistic accounts of phenomenal states (subjective conscious experiences) are incoherent. He concludes by asserting that theism is a coherent and comprehensive explanation for phenomenal states. Hamza closes this topic by speaking about the Quranic argument for God's existence. Which involves assessing the possible logical explanations that explain the emergence of the universe.
The last topic that Hamza addresses is based on the fact that God wants to liberate our hearts and minds. We are all slaves to context. We never chose our DNA, parents, social economic circumstances in which we were brought up, names, siblings, gender, social pressure, etc. The only way to truly liberate ourselves from this slavery is to be at service to God and to worship Him as he deserves to be worshipped, because He created you and knows you better than you know yourself, and He knows what is really good for you.