We're energized & motivated to control, fix, grab, run from, stabilize - anything but embrace - liminality, uncertainty, the unknown, randomness, any form of change. Instead, we do our best to make the external environment pleasant & stable, assuming that this will make our internal environment happy for the long run.
This controlling impulse is so automatic, that we even try to control life with mindfulness practice - turn it into a simple tool to fix & control - at times, even long after we think we've transcended the initial "getting rid of stress" phase of our practice. See: http://www.johnlovas.com/2012/01/intention-shifts.html
Life IS liminal, uncertain, unknown, unpredictable, fluidly changing, shifting, flowing energy ... We are an integral part of - one with - this mysterious sacred process - NOT external to NOR victims of it. Mindfulness is waking up to this mysterious reality - who we are & how we're part of this - living this open question - a timeless opening process.