Because it's bad enough not getting what you want, but it's even worse to have an idea of what it is you want, and find out, at the end of the journey, that it isn't, in fact, what you wanted all along.
For det er slemt nok ikke at opnå det, man gerne vil. Men det er endnu værre at have en idé om, hvad det er man vil, og så til sidst finde ud af, at det overhovedet ikke var, hvad man ønskede.