Life and plans don't mix

I have been running 
For so long now on treadmills  
It seems I have long forgotten 
Why I started running in the first place 

They say life is what happens
Outside the plans we make 
It waits for no man "pull your weight up son"
To get his house in order 

It  is more like, build as you go, clean as you go 
But don't forget to lift the carpet up 
Every now and then for spring cleaning 
A few skeletons piling up, weighing us all down 

Half way the game changes not like predicted seasons 
Never at the finish line as we expect 
To start as new, a fresh page of conundrums 
All woven into each other finely abstract and entwined 

And life just keeps happening tic toc 
John Lennon knew best with wisdom 
Guess that made him a lucky man 
To have had the realization, awakening call 

An understanding on the meaning of life 
Life is what happens when you go making plans 
Saving the world and exposing the pretentious 
And just in a blink of an eye he got shot,  dead and no more  

I read somewhere a list of five things 
Most people say they regret on their death beds  
And sat down to stock take and ponder  
A true check list, avenue to compare with  

No man lived wiser and spoke with sincerity  
Said the ultimate truth without prejudice or falseness  
Than a dying man with last breaths 
To call his own nothing to lose of this worldly desire

No hold backs
For game change
In last cards played 

The five list of regrets on death beds given by a nurse to compare with 
1. I wish  I had the courage to live a true life to myself, not the life others expected of me
2. I wish I didn't work so hard
3.I wish I did have the courage to express my feelings
4.I wish I had stayed in touch with my friends
5. I wish that I had let myself be happier