When you take time to reflect you start to realize that:

thoughts don't really begin, they just are
and they are endless
they appear but are not concrete
and, if there is no beginning and no end, no way to contain or house them--

Then I have no choice but to remain open so that these thoughts can pass through me. This insight helps me apply the cliche of "being a vessel for change." I truly am. I am not the person I was a year ago, or even a month ago. If I don't remain open, I am literally hoarding these thoughts, most of them useless distractions.Useless thoughts are unwanted, heavy, and limiting.