Norman Grubb explores the profound questions of life: what it is, how to live it, and why we live it, emphasizing that true humanity is found in self-forgetfulness and spontaneous expressions of God's love. He asserts that Jesus Christ is the embodiment of life and love, and that our existence is meant to be a reflection of God's self-giving nature. Grubb highlights the importance of recognizing our relationship with God as one of union, where we live not for ourselves but for others, embodying the love that God has poured into our hearts. He concludes that the essence of Christianity is not about self-improvement but about allowing God to live through us, transforming our lives into expressions of His love.