A fleeting thought

A fleeting thought

flew in

and out 

of my mind

where did you go, thought?

what were you about?

will I ever know?

It's a matter of some doubt.

You may not have been important

but you came into my mind

and disappeared in an instance:

that really wasn't kind.

I will sit and wonder

perhaps even bite

my nails, as I ponder

what did I want to write?

The great wide world 

is full of mystery

The great unknown,

unexplored, puzzling

Far more bewildering, though

are the mysteries of a single

human mind

What on earth was I thinking about????