Zac Poonen emphasizes the importance of acknowledging our physical needs in prayer, as demonstrated by the petition 'Give us this day our daily bread.' He explains that while God is deeply interested in our bodily needs, it is crucial to prioritize Him first to avoid spiritual ruin. Poonen highlights the balance between asceticism and materialism, advocating for a healthy view of our bodies as temples of the Holy Spirit. He encourages believers to seek God's provision for their daily needs while also caring for others, illustrating that true fulfillment comes from serving both God and our community.