Hamburg doctor Dr. Arne Elsen experiences two supernatural healings by chance and subsequently begins a relationship with God. He wants to experience what biblical verses express, such as: Rejoice always! Pray without ceasing! In everything give thanks! For this is the will of God in Christ Jesus for you (1 Thess 5:16-18). Eventually, he comes up with the idea of using a digital alarm clock to remind himself every 10 minutes to stay in touch with God. As a result, many things start to unfold: he experiences God's specific communication, his marriage is renewed, miracles follow one after another in his profession, and he shares the alarm clock idea with his patients, who then experience similar things. Meanwhile, the idea of the alarm clock spreads around the world. Hartmut Holler explores this phenomenon in his book. He tells the story of Dr. Arne.