It’s not impermanence per se…. that is the cause of our suffering. Rather, it’s our resistance to the fundamental uncertainty of our situation. Our discomfort arises from all of our effort to put ground under our feet, to realize our dream of constant okayness.
Pema Chodron, The Fundamental Ambiguity of Being Human
Mindfulbalance 
DUNNOW’S PRINCIPLE OF UNCERTAINTY
Don’t assume you can trust every moment you meet
Or you will die of disappointment
Don’t assume you can’t trust any moment
Or you will die without love
Just learn to meet each moment as if it were new
Uncertain
Because it is
– From “The Book Of Guff”