From Cricinfo:
Dhoni took it a step further. “Mentally we are right there. When it comes to the mind it depends on what you’re feeding into the mind. The mind doesn’t know if it’s Napier or what you’re feeding. You come and say ‘this is Napier’, and it believes it’s Napier. If you see, it’s an abstract. When people say ‘he’s in form’, nobody has seen form. It’s a state of mind where you are confident and you think very positively and everything you think about, you think it’s very achievable. It’s about how you treat the mind. One day here, one day there doesn’t really make a difference. Preparation-wise, we are up to the mark.”
I didn’t take any philosophy classes in college, but this is fairly deep stuff — something to do with perception versus reality and mind versus matter. I particularly like the phrases “nobody has seen form” and “it’s an abstract.”