I agree with what you wrote. The ability to bluff is a very powerful weapon for any poker player. Most of the time I bluff when I'm in position and when I have a big stack. In order to win pots with bluffs, I need to know how my opponents play, tight or loose, aggressive or passive. And of course, I need to be very careful about how the hand goes, what bets were made before the flop, who raised, or vice versa, all the players just called the big blind. I think a good poker player should understand and feel when it's okay to bluff and when it's better not to.