Losing ground

When the Brain Doesn't Work
This started out as "humor" but ended up "lament"

When your tricky brain goes AWOL
And you feel you're losing ground
And the thought you're trying to retrieve
Just doesn't hang around.
You try hard to remember
But it seems to no avail
You may as well be hauling rain
In a leaky water pail.
Your mind gets so frustrated
And you fear the end is near
You seem so close to losing all
The brainpower you held dear.
You fight the sinking feeling
You're ageing much too fast
You're so afraid that intellect
Your clever self has passed
Your wit that used to be so sharp
Has hardly is now an edge
To get a thought delivered now
You almost need a dredge
Your youthful vim and vigour
Is gone without a trace
It did not stay to bid adieu
Just left you in disgrace
It's sad to see you're failing
And worse to be aware
That all that worldly wisdom
Is just not yours to share.