They want things to be totally positive or totally negative, and tend to see things like that. But every situation is a mixture. It has negative features and positive features. Its important to see both, because in order to deal with a situation realistically we have to be critical as well as accepting, but people are far more inclined to see the negative than they are to see the positive. So we have to make a special effort to identify the positive and focus on it without forgetting the negative features which must be taken into consideration so that we can correct them or, if necessary, find a way to live with them.
Some people have tunnel vision.
They only see part of a picture, a fraction of the reality that confronts them. Bilaam, who had only one eye, is a classical example of this. Bilaam is riding on his donkey. It goes off the path once, twice, three times. Finally, Bilaam gets hurt.