Universe?
https://leebladon.com/blog/toroidal-universe/
Human body?
https://scienceinsights.org/what-is-the-topology-of-a-human-body/
The Doughnut?
https://www.gchq.gov.uk/section/locations/cheltenham
Exercise ball?
https://www.amazon.co.uk/Exercise-Workout-Training-Stability-Classroom/dp/B00OUK7P0Y?th=1
'God'?
"symbol of unity, interconnectedness, and wholeness."
Conclusion: We live in a doughnut.