What is the real meaning of Passover?

Passover is a Jewish and Samaritan celebration of the Hebrews' escape from bondage in Egypt. In the book of Exodus, in The Bible, God sent ten plagues among Pharoah and the Egyptians to get Pharaoah to free the Hebrews. On the tenth plague, God warned the killing of the first born child of every home, with the exception of the Hebrews' home with the blood of a lamb spread on their doorpost. That night, God sent his holy spirit, and the homes with the blood of the lamb on the doorposts were passed over, creating the term passover. As a result, Pharoah freed the Hebrews.