When I put on a trade, all I expect is that something will happen. Regardless of how good I think my edge is, I expect nothing more than for the market to move or to express itself in some way. However, there are some things that I do know for sure. I know that based on the markets past behavior, the odds of it moving in the direction of my trade are good or acceptable, at least in relationship to how much I am willing to spend to find out if it does. I also know before getting into a trade how much I am willing to let the market move against my position. There is always a point at which the odds of success are greatly diminished in relation to the profit potential. At that point, it’s not worth spending any more money to find out if the trade is going to work. If the market reaches that point, I know without any doubt, hesitation, or internal conflict that I will exit the trade.

The loss doesn’t create any emotional damage, because I don’t interpret the experience negatively. To me, losses are simply the cost of doing business or the amount of money I need to spend to make myself available for the winning trades. If, on the other hand, the trade turns out to be a winner, in most cases I know for sure at what point I am going to take my profits. (If I don’t know for sure, I certainly have a very good idea.) The best traders are in the “now moment” because there’s no stress. There’s no stress because there’s nothing at risk other than the amount of money they are willing to spend on a trade. They are not trying to be right or trying to avoid being wrong; neither are they trying to prove anything. If and when the market tells them that their edges aren’t working or that it’s time to take profits, their minds do nothing to block this information. They completely accept what the market is offering them, and they wait for the next edge.

Source: “Trading in the zone”