Not as in ‘willpower’, but connected.
‘Will’ is a strong word. It tells me what you are going to do for me, or, it’s how I can let you know what I’m going to do for you.
‘Will’ brings us together.
‘Can’ is much weaker. ‘Can’ is often used, but it tells me that while you are able to do something, you still might not.
Don’t tell me what you can do.
Tell me what you will do.
Matt Fried 