My research focuses on the conceptualisation and measurement of meaning in life, as well as the interplay between meaning in life and various factors such as secular/religious/spiritual worldviews, well-being, health, work, and civic engagement. Additionally, I work on transdisciplinary approaches to suffering, mortality awareness and alienation, and their practical significance for individuals, organisations, society and the natural environment.

I have published extensively in international journals and edited books, and written several monographies. I am a member of numerous editorial boards and regularly collaborate with colleagues worldwide. As a speaker at international events, I share insights from existential research in scientific and applied contexts, such as government agencies, educational institutions, NASA, health organisations, NGOs, churches, trade unions, social partnerships and companies. My work is frequently covered by the media. I collaborate with DIE ZEIT, a German national weekly newspaper, to make questions of meaning accessible (https://www.zeit.de/serie/sinn-finden and https://www.zeit.de/serie/besser-leben).