They're symbolic of Jesus' overthrow of the evil Bunny Lord and his Cottontail Empire.
Thousands of years ago, the Earth was plagued by hominivorous rabbit-like creatures enslaved and controlled by an even more evil rabbit-like creature who called himself the "Bunny Lord".
Every Spring the Bunny Lord - in an effort of asexual, carnivorous reproduction - would send his minions to hide eggs in homes known to house children.??When these eggs hatched baby bunnies were born and fed on the flesh of the children.
This time of year was known as Eatseron.??One year a man with a beard named Jesus came and vanquished the Bunny Lord in an epic battle in which Jesus was forced to use a mighty battle axe sent from the Heavens to decapitate the Bunny Lord and end his mind-control over all of rabbit kind.
In preparation for his imminent return children were trained to identify and hunt for hidden eggs in their homes and out in fields in case the Bunny Lord decided to take more circuitous routes.
Over time, through language changes and lack of written history, Eatseron became known as Easter.
wtf, man???That made no sense!
Thousands of years ago...