You see, to say that what happened to Nebuchadnezzar prefigures a greater fulfillment is to create what is called a typical/antitypical fulfillment.
Uyabona, ukusho ukuthi okwenzeka kuNebukadinesari kufanekisela ukugcwaliseka okukhulu ukudala lokho okubizwa ngokuthi ukugcwaliseka okujwayelekile / okufanekiselayo.