In vocal technique to solve a technical point often means to make in the perception of the singer the disappearing of the question. This is the case for the passaggi, or vocal bridges. When truly solved the mechanism to adapt gesture and postures and muscles work and copertura will make the singer never perceive that such passaggio do exist.
* This is one of the typical examples of how a technical level will give opposite perceptions, even if from a physiological level the question is the same. In a technical solved level the singer will say exactly the opposite of the not solved singer about any question.