I'm not Jewish. But I do celebrate the last day of Passover. It will be Thursday April 16th.
The last day of Passover is when the lambs blood was placed on the door posts of the Hebrews. So, the Angel of Death would pass over their homes. The Hebrews were slaves in Egypt for about 400yrs. This last plaque in Egypt caused the Jews to be set free.
For Christians, the lambs blood is symbolic of the Lamb of G-d that willingly spilled his blood for all of mankind. So, death could be conquered if one accepts the sacrifice for their sins and requests the Holy Spirit of G-d to enter their lives.
The world system hates G-d's laws and the word made flesh. It does love Easter. A pagan Holiday. I stand against the world system.