Each person in the life regardless of a sex and age is familiar with such phenomenon as failure.
Still in the ancient time the person thought of why she comprehended him.
In my opinion, this expression can't one-sidedly be interpreted.
Firstly, as practice shows, there are people who passionately wished one thing and received absolutely another.
For example, the famous Russian journalist Vladimir Posner since the childhood furiously dreamed to become the great scientist.
Secondly, it is thought to me on one desire you can't go far and, it follows that, it is necessary to work to reduce risk of failure.
Thirdly, in life there are contingencies, which influence our desires and, therefore define also further I will meet either with good luck or with failure.
Generally, for the reason, that any person is familiar with failure he understands it in own way or doesn't think about it.
Someone considers that failure - result of its inactivity, someone - whatever happens, happens for the better, and the third doesn't find an explanation for failure in the life.
Anyway, it seems to me, there is no accurate formula of good luck so there can't be a certain rule of failure.
Therefore, this statement has the right for existence as one of many explanations of failure by people.