One of the "dinamicas" (a word borrowed from Spanish, meaning “activities”, “exercises”) was surrendering our crowns to our Lord as a gesture of yielding to His Authority. In Rev 4:10-11, an expression of worship by the four living creatures (four awesome beings) is their act of casting down their crowns before the throne of the God. They acknowledge His sovereignty and express that their power and authority is a service of sharing and participating in the same authority which is His.