Omnism.
 

Omnism is the recognition and respect of all religions or lack thereof; those who hold this belief are called omnists (or Omnists). The Oxford English Dictionary (OED) quotes as the term's earliest usage by English poet Philip J. Bailey: in 1839 "I am an Omnist, and believe in all religions".

Quoted from wikipedia....

A friend of mine once referred to spirituality as a light passing through a stained glass window--many, many expressions.