Hit and hit

Once I thought an easy thing
To just hop hop hop to the top;
Then I was
A little boy;
And just dreamed dreamed, dreamed
And dreamed;
Later was when I saw,
‘Twas a childish view I had!
In this hard world of ours;
You have to hit, hit, hit and hit,
If you want to drive home a nail,
Into the wood of life;
Hit hit hit and hit;
Never wear out of hitting hard.