I think it's a concept that any thinking, self aware person will realize when they get beyond falling into a slotted belief system ranging from christianity to yogic traditions of mind ensnarement.
One such mind entanglement is falling for "the life is an illusion so disregard it" belief system.
I am reminded of a story.
Damn copy paste function didn' work.....oh well. It was an illusion anyway so disregard. ;-)