Fearless state of mind when playing poker?

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I play at my best when I feel no fear, but I don't always feel like that. Kind of like a tennis player being in or out of form. How do I top my form in poker?

I got to think about this when I saw Layne Flack in the recent airing of WSOP ME 2005. He played brilliantly, confident extraordinary, with no fear whatsoever.

How do I get into that fearless state of mind when grinding it out at the tables?

(I play online for relatively small stakes ($2/$4), and I make a nice living out of it, so the stakes themselves are of no concern why I feel fearless or not. Neither are the competition, since I pretty much always play against the same type of players.)

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