nagging uncompleted tasks

Uncompleted tasks always nag. They lurk behind the present engagements. They lie and wait by the side for attention. And they threaten one with consequences.
Things not done and remaining to be done linger in my mind. Residues, pleasant and unpleasant, of things already done also linger in my mind, and come up floating to the surface every now and then.
Fear of something misfiring or bursting suddenly, lurks and nag.
These generate restlessness.
Restlessness aggravates bodily discomforts.
Discomforts in turn bring up the unaccomplished tasks to the surface and aggravate the restlessness.
Residues of things done not so satisfactorily also nag.
Where is the escape from restlessness when one can’t complete everything one is obliged to?
Eighty-one years of storage is there in my memory – rather heavy. And there is also the built-in memory acquired by birth. And the possibility of some memory in the server in outer space can not also be ruled out.
At a given moment in the present, all these memories try to come up to the surface waiting for an opportunity of a right mood suiting them to come up. If one which is about to surface is suppressed or kept aside for the time being, another, more powerful, gets the upper hand and starts running in my mind. The active mind can thus be never empty. But if I am fully conscious of the comings, goings, and other operations within the mind, I am able to be free of the movements at least for the time being. Then, in spite of any activity in the mind, I am able to ignore all of them to look deeper for anything new underneath or beyond. One can look in the background for anything never seen or experienced before.
But I have not come across anything significant or spectacular so far. It is disappointing, but the journey is interesting. Thought has to be silent, most of the masters say. Can the mind be that silent?
How true, ‘only thought one is addicted to in old age, not Truth’, said the sage!