Too much, too soon; always there is so much to do and so little time. Left with the feeling of being incomplete, there being so much to do or buy and so few resources in time and money. Those are but two examples, of the tangible and intangible sort.
My meaning lies elsewhere, of course. In the feeling of being incomplete, of not recognizing what is required in advance of the need. Self-examination only goes so far. It tires the subject and does not always produce the expected or desired results.
Few things speak as loudly as failure. Truths are not created by repetition, nor magnified by volume.
They can, however, disappear in silence.