What religion is the umbrella?

Excuse me, but I must ask, what exactly do you mean by referring to a "religion" as an "umbrella"? Typically, an umbrella is a practical object used to shield oneself from the rain or sun. On the other hand, religion refers to a set of beliefs, practices, and cultural systems that are shared by a group of people. It's quite unusual to hear these two concepts being juxtaposed in such a manner. Could you please clarify your question or provide more context, as I'm genuinely intrigued by this apparent metaphor?