For more about the 13th c. CE Persian mystic Mahmuyd Shabistari, see this post.
What are “I” and “You”?
Just lattices
In the niches of a lamp
Through which the One Light radiates.
“I” and “You” are the veil
Between heaven and earth;
Lift this veil and you will see
How all sects and religions are one.
Lift this veil and you will ask —
When “I” and “You” do not exist
What is mosque?
What is synagogue?
What is fire temple?
Translation Andrew Harvey
What wonderful and sweeping inclusivity, and so gently offered that even an ardent follower of any one path will be all-the-more likely to see the unity and the One heart.
Yes, and there is also the allusion to the Sura of the Qur’an, which would have been very pertinent to his Muslim readers and companions :”Light upon light…”