The aim of this campaign for the Evangelical Reformed Church in Basel was to explain the most important church festivals in the course of a year. At the center was the motif of a tree and its different phases through the year, showing that man cannot control everything but that there are things that are decided in other ways. 365 illustrations of the tree, changing every day, formed the core message. Separate sub campaigns used the tree motif for that day. The app changed its form and color every day. Even though the theme of the campaign may seem to be philosophical, the texts made it clear that church festivals were not simply invented.