Perhaps you’ve heard of C S Lewis from reading the Narnia series or watching The Lion, The Witch and the Wardrobe.
He’s interesting to us in RE and PSHCE for his thinking and books about Christianity. His gradual conversion to Christianity is explained in this BBC biography, in which it explains about how his friendship with J R R Tolkien affected him.
There are some quality CSLewis Doodlebooks on YouTube of which I’d advise the The Origin (or 1, 2, 3, 4) of Christianity as being a good first step into understanding C S Lewis’ thinking.
You can also find out about how Aslan’s resurrection in The Lion, The Witch and the Wardrobe was hugely influenced by C S Lewis’ Christian beliefs of Jesus’ resurrection.