The blessing of the wine is something we say multiple times during the seder, it is important that we say the blessing before we drink so we can thank Hashem for creating the fruit of the vine. I think this prayer is important because when we are saying it is specifically stating what we are saying and what we are thanking Hashem for, in this case being the creator of the vine so we are able to drink wine.


haggadah Section: Kadesh