Human beings cannot improve anything on earth if they do not know how to lift themselves up in order to contemplate other regions inhabited by more evolved entities who can serve as examples and models to them. They cannot create something better or more beautiful if they have not beheld a reality somewhere that surpasses their own.
And this is precisely what the work of a disciple is all about. During their meditations, contemplations and ecstasies, they manage to glimpse this perfection on high, which they then endeavour to reproduce here on earth.
This is the only way to achieve true transformation.
And if, despite their efforts, human beings fail to improve much on earth, it is because they do not know how to rise up to contemplate a world that surpasses them.