The Sufi sees the truth in every religion.
 

If invited to offer prayers in a church, a mosque,
a synagogue, or a temple, the Sufi is ready to do so,
knowing that all people worship the same God, the
Only Being, no matter what Name they use.

Yet the Sufi's true house of worship is the human
heart, in which the Divine Beloved lives. Sufism is a
religion for those who wish to learn religion from it,
a philosophy for those wanting wisdom from it, a
 mystical path for any who would be guided by it to
the unfoldment of the Soul, and yet it is beyond all
these things.  It is the Light of Life, which is the
sustenance of every soul.
If anybody asks you, What is Sufism? What religion is it?", you may answer, "Sufism is the religion of the heart, the religion in which the most important thing is to seek God in the heart of mankind."    - Hazrat Inayat Khan