We seek ease in our bodies/minds/lives. Yet we create unease by creating conflicts in our minds in the form of resistance to what is happening. Saying Yes and meaning Yes and No is a quick-fire way to reduce the bulk of suffering in our lives. Ease is the harmony in our inner experience - not how hard we are working physically. Physical effort is cheap, mental suffering is quite expensive!
Negotiating after a Yes, and regretting after a No creates tension and misery in our lives.
Clarity and Courage are important for finding and inviting Ease in our lives. We might exert a lot of effort physically but be peaceful in our minds.