The spirit of the person is very important. Some people wait for a dirty trick from any situation, a case where something can not work. Such people, even if they are having come on training, refuse to do exercises, and then are indignant, that they have not received result. How you will receive the result if you have liquidated all opportunities of its achievement by your own hands? Whether it is possible to learn to play on a piano having looked how other person plays and never having tried to play something even by one finger? But most interesting is the approach of people which aspire not to learn true, and not to receive any practical result, but to find somebody to knock by a sledge hammer. Sometimes they are very dear people, but they had some bad luck in life and want to get rid of this, but choose unusable ways.
The basic purpose of NLP is modelling of successful people. Many people use some methods of NLP but not suspecting about it. The most ancient modelling is writing of books. For a long time people tried to seize successful experience and to learn others to use it. Children imitate parents. The saying says: “like father like son”. Whether it is necessary to be surprised, why in families of successful people children usually are successful too, and in “unsuccessful” families children often have problems in life? NLP helps to correct something that requires it quickly and successfully. For example, here is the joke of NLP-experts: “Never late to have the happy childhood”.