Sentence:  ... That as a piece of Iron red hot by reaſon of the <WSD>"Illapſe</WSD>" of the fire into it appears all over like fire; ſo the Souls of the Bleſſed by this <WSD>"Illapſe</WSD>" of the "Divine Eſſence" into them ſhall be all over "Divine". 
Meaning of the word marked with <WSD> tags:  A sudden descent or attack.