Sustained Efforts

I ask myself,
Will I be able to keep at this?
Will the process pull me deep inside the moment?
A couple of yeses to these questions
constitute a map, a guide, navigation.
Fermented or distilled beverages only qualify
with several exceptions.
Pedaling a bicycle sustains against any objections.
So does writing.
Sometimes reading.
Coffee has an upper limit,
that I'm well past today.
But I'm still writing.