Popular favour can change quickly and suddenly. The example Solomon gives indicates that the next generation does not view the new king’s reign positively. This king couldn’t change everything - while this was expected of him. No king can give the ideal life to his people. There are always flaws and weaknesses in his government. Relying on a new human king also does not bring about what is expected. That too is vanity and a striving after wind.
15 J'ai vu tous les vivants qui marchent sous le soleil entourer l'enfant qui devait succéder au roi et régner à sa place.