“Delight them with a complete structure.” We should understand the meaning of an incomplete structure. After all, an incomplete structure is unfit for anything.
We should interpret that a time of Kedusha [holiness] is a structure, when a person builds in his heart a place for installing Kedusha. There are two forces in man’s heart: the good inclination and the evil inclination. An incomplete structure means that one can be a servant of the Creator only with the good inclination, which is vessels of bestowal, while a complete structure means that he can serve the Creator also with the evil inclination, as our sages said, “with all your heart, with both your inclinations” (Berachot 54a).