So when you tell him " I can win this game, I will win a great value of money in casino" ( Positive energy (+) ).
Then your mind will implement these ideas, therefore, you will achieve what you want and it is certain that you will win at casino.
Do you really think all gamblers never think about they want to win big money from gambling games while playing?
If what you said is very true then by now you wouldn't have seen single casino to play games.
Whatever you say I never encourage people to gamble for money because it is very addictive and people can lose a lot of money in this addiction. So if you can't control yourself better stay away from gambling.