Rumi's poem "One Song" is similar to Blake's poem "All Religions are One." Both Rumi and Blake express the idea that all religions are "one." Rumi describes how "Every war and every conflict" are caused by "some disagreement about names." Blake's ideas are in line with Rumi's. Both think the differences between religions are not important because all religions stem from the same source, or the same "jug" in Rumi's poem.
"One Song"
Rumi
Every war and every conflict between human beings
has happened because of some disagreement about names.
It is such an unnecessary foolishness,
because just beyond the arguing
there is a long table of companionship
set and waiting for us to sit down.
What is praised is one, so the praise is one too,
many jugs being poured into a huge basin.
All religions, all this singing, one song.
The differences are just illusion and vanity.
Sunlight looks a little different on this wall
than it does on that wall
and a lot different on this other one,
but it is still one light.
We have borrowed these clothes,
these time-and-space personalities,
from a light, and when we praise,
we are pouring them back in.