The Upper World contains the lower world(s), but is concealed from the lower world(s). Each Upper World contains all its preceding lower world(s), but World(s) higher than it is/are concealed until desires on the current level are corrected.
The video says, “The purpose of Creation was to fulfill those deep, dark desires that Malchut had in Phase Four” and “Only by fulfilling the innermost desires could the Kli truly be united with its Creator.” After reading your reply, I guess I don’t need to figure them out (at my present stage of development) but to wait for them to be revealed later? Probably related to our ego getting bigger when we develop spiritually.
After watching the video of “10. Nekudot de SAG” several times, I still do not know what are those deep dark desires or innermost desires of Malchut had in phase four. What are they? Just guessing — is it related to “using the property of Bina in order to receive” or “double Will to Receive”?