Ablution is not the best English word for wudhu (wudu); lumination is the better word. Sheikh Hamza Yusuf explains in the video.
For Christians: Jesus taught people to do the Will of God (according to Mark 3:35) in order to become his brothers, mothers or sisters. A Muslim means one who submits to the Will of God. Do you want to become a brother/sister of Jesus? If yes, become a Muslim. Now is the time.
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