Remnants

I have no mind for what I am to do.
I lack the sense that ought to make me spend
My limited attention on those few
Points necessary to my purposed end
For that dull purpose is no goal for me;
It is a remnant of too long ago,
An undigested fragment that can be
Easily put by, and yet I know
In some way I should keep it. And yet why?
Why not abandon all to seek new ways,
Putting everything that's prior by,
Wearing new fashions fit for newer days?
Because the past is where the present feeds
And so past goals are part of present needs.