There is nothing religious or spiritual about this movement.
DAESH is a band of recruited thugs and mercenaries.
Funded and armed by the United States and its NATO/Arab allies.
Having people behead people "in the name of Islam" and burn people alive "in the name of Islam"
In 2007, Zionist Bush and the Saudis agreed that to spite Iran and Hezbollah's growing influence (following it's victory over Israel in 2006) they would bolster SUnni extremists.
The "moderate rebeles" turn around and either defect to ISIS or sell their weapons to ISIS.
Israel has always had influence over Middle East policy of America... in fact, the decision to invade Iraq in 2003 was due to Israel.
But Israel also wants regime change in Syria and Iran as well, and their approach about it in the Middle East has been through this proxy army of terrorists.