Tickle the Whale

10 Nisan holds deep historical and spiritual significance in both Jewish tradition and biblical narrative, especially in the context of the Exodus from Egypt and events leading up to Passover (Pesach). Sometimes referred to as the Day of Selection or the Day of Entry depending on how it's viewed:

Historical Context: The Day of Selection (Exodus 12:3)

Four-Day Waiting Period: Lamb was kept from the 10th to the 14th to ensure it was blemish free.