Hermann Hesse said this quote

When someone is searching, said Siddhartha, then it might easilyhappen that the only thing his eyes still see is that what he searchesfor, that he is unable to find anything, to let anything enter his mind,because he always thinks of nothing but the object of his search,because he has a goal, because he is obsessed by the goal. Searchingmeans: having a goal. But finding means: being free, being open, havingno goal. You, oh venerable one, are perhaps indeed a searcher, because,striving for your goal, there are many things you don't see, which aredirectly in front of your eyes.