I spent 3 hours planting my onion seedlings, and i'm not done yet. Why did i think i could do it in half an hour?
I forgot the groundwork that needs to be done--the cleaning up of the bed.
The mind orders the body around. I want to go plant onions. But our master-mind sees the big picture, and conveniently forgets all the steps the body has to go through to actually carry out this order.
The body tires and needs to take a break from planting onions.
The mind continues to dream up pleasant garden scenes.