Dayenu is the song sang during the Passover seder. This song provides Rabbi Akiva showing us why we should count many miracles. We do this to show the success of gratitude and the defining quality of the Jew. If we think that Hashem had split the sea for us but had not led us through to dry land, it would have been enough for us? No, we would have drowned. Even though the splitting of the sea in the moment didn't cause anything, it lead to us being able to go through without drowning. This song is sung to sing the appreciation we have for Hashem. The article teaches us why we sing Dayenu and how the splitting of the sea saved us from drowning. 
 


haggadah Section: -- Cup #2 & Dayenu