There is a time of year here when ecumenism (in the sense of "a movement promoting worldwide unity among religions through greater cooperation and improved understanding") is celebrated in services held by different faiths in the community (mosques, churches, synagogues in the main).
Is there a (view?) here respecting participation in same? Anybody do it/done it?

Ps. Aside from Dalai Lama and Thich Nhat Hahn, I mean.