What is prayer, and how does it work when we pray or intercede for other people? Owen Lynch and Bern Leckie discuss experiences of this, including times when prayer has changed things - often the person praying.

What can happen when we form habits of praying for others and ask, in Jesus' words, for God's kingdom to come and his will to be done? And can it make a difference when we don't just pray alone, but pray together with other people?