"If words come out of the heart, they will enter the heart."
~ Rumi ~
Then it hit me - did Rumi get this idea from us Jews or vice versa?
So I conducted a search for the earliest source for:
"D'vorim Hayyotz'im min Halleiv Nichnasim el Halleiv"
One kind colleague, Rabbi Yehoshua Steinberg, responded as follows:
«It's often quoted in the name of Chazal, but the closest Chazal is Brachot 6a "kol adam sheyesh bo yirat shamayim devorav nishmaim."
Much closer though is
Sefer haYashar, R"T (13:173): "kol davar sheyatza min halev yikanes balev."»
And R Steinberg add the following T'fillah;
«May our prayers on Rosh Hashanah be from the heart and enter the RBSH"O's heart kivayachol.»
I Googled the Dates of Birth
For our competing authors -
September 30, 1207,
Jalal ad-Din Muhammad Rumi,
Rabbeinu Tam's DoB:
1100, Ramerupt, France
Thus, Rabbeinu Tam preceded Rumi by about a century, yet the precise origin may remain shoruded in mystery, covered by the sands of time.