In the Seder of Passover, the ritual of washing hands is called Urchatz (or sometimes just Chatz), and it is performed at the beginning of the Seder, before the Karpas (dipping of a vegetable in salt water) and the recitation of the blessing over the matzah.
The washing of hands (Urchatz) symbolizes the concept of purity and holiness, which is a central theme of the Passover holiday. In Jewish tradition, washing the hands is a common practice before engaging in any sacred activity or before eating a meal, to symbolize the separation between the mundane and the holy.
During the Passover Seder, the washing of hands before the Karpas also has a symbolic meaning. The Karpas is a reminder of the springtime and the renewal of life, and the washing of hands represents the spiritual cleansing and renewal that the holiday represents.
Additionally, the washing of hands before the Seder is a reminder to begin the holiday with a pure heart and to be mindful of the significance of the holiday. It is also a symbol of humility and the need to purify oneself before engaging in any spiritual activity.
Overall, the washing of hands in the Passover Seder is a powerful symbol of the purity and holiness of the holiday, and a reminder of the importance of beginning the holiday with a pure heart and a commitment to spiritual renewal.