Who is God from The Weight of Glory and Other Addresses and what is their importance?

Lewis refers to God as an infinitely wise, divine being that inhabits heaven. He is someone who the believer, the Christian, should include in every aspect of life. Prayers are not to be something done in passing or out of duty, but something to be directed honestly and heartily toward God in order to gain knowledge of the almighty and thus learn his intended direction for that believer.