'From this situation, one must act, and transcend those boundaries. This ‘living process’ (‘lebendige Prozeß’) involves casting off the worldview that you have come to the limits of, and creating another. Much like a hermit crab, a worldview is a shell that we enclose and encase ourselves within. That shell then insulates us from experiences that challenge our worldview. The task of psychology is to engage with this tendency in human nature, and bring the subject out of these shells (‘Gehäuse’).'

https://aeon.co/essays/karl-jaspers-the-forgotten-father-of-existentialism