This site presents video blessings for Bar Mtizvah boys from the former Ashkenazi and Sephardic Chief Rabbis of Israel, both of whom held these positions from 1993-2003. In a 3 minute long video, Rabbi Israel Meir Lau points out how a Bar Mitzvah is a celebration of taking on the yoke of the Torah and mitzvot, contrary to most celebrations which mark the completion of something. In a shorter video, Rabbi Eliyahu Bakshi Doron emphasizes the significance of passing on tradition from generation to generation. In Hebrew with English subtitles, both videos praise the organizers of Bar-Mitzvah.org, an excellent resource for those preparing for an Orthodox Bar Mitzvah ceremony.