Feeling of intention from unconscious thoughts

"A sense of having pondered a question must be present in consciousness in close proximity to an answer in order for us to feel a clear cause-and-effect relationship. But we are intending to do a wide variety of things at any given instant. We are planning tonight's dinner, next week's lecture, a trip to the mountains, when to pay our taxes, get our shoes resoled, and when to turn on the TiVo. Having myriad dissimilar intentions simultaneously present in consciousness would create a chaotic and confused mind; attention would be scattered among all the questions being entertained. Not having all intentions simultaneously front and center in awareness creates the illusion that some thoughts aren't intentional, but simply "occur to us." It would appear that evolution has chosen the uncluttered mind at the expense of stripping the feeling of intention from unconscious thoughts."