You can call a shadow a Sufi, a Yogi or whatever you like. The source is the same.
The source is the sustainer of your, mine and the existence of this whole Universe.
Bodhidharma says:
DHARMAKAYA HAS NO FORM, THEREFORE ONE SEES IT WITHOUT SEEING.
DHARMA HAS NO VOICE, THEREFORE, ONE HEARS IT WITHOUT HEARING.
PRAJNA HAS NOTHING TO BE KNOWN, THEREFORE, ONE KNOWS IT WITHOUT KNOWING.
Forms, sounds, languages... everything that is perceived through our mind is nothing but a shadow of THAT (the source). This shadow existence is called Maya (illusion). Its not real.
Sivananda says:
He who gets knowledge of the Self having overcome Maya, the illusory power, will alone know what Maya is, how it arises and is destroyed. The why, what and how of Maya can be known only by one who has transcended Maya and has entered the Glory of the Self. Others can merely speculate over it, but cannot solve the riddle, for the instrument or the mechanism of human knowledge is centred in his psychological organ which is a modification of Maya itself. Real religion begins when the intellect stops working.
THEREFORE... O SEEKER OF THE TRUTH! O INNOCENT ONE!
GATE GATE PRAGATE PARASAMAGATE BODHI SVAHA!
GO ON, GO ON...
GO BEYOND, GO ALTOGETHER BEYOND...