I don't remember where that saying originally came from but I do remember my teacher saying this. It is useful to me when going thru difficulties, to help settle my reactive mind.
When 'as it is' simply seems too difficult. Does that make it an escape from reality? In a way it surely does as it brings relief from samsaric difficulties and the mind's constant chasing after them in its endless repetition of old patterns.
Also when I am suffering from weather-head (ha ha) with migraines at weather changes when it allows for a step into the quiet center of the storm, so to speak.
A saying similar to the one about being the ocean, not the waves.
D



