Good Harvest

This egg (with slight modifications) appears in Ukrainian Easter Eggs and How We Make Them.
Suns and stars tend to be based on the same shape. The shape at the center of this egg looks more like a star, but the context (seeds, leaves, buds, berries, and vines) certainly suggests a harvest motif. The saw motif (the zigzag pattern in white, around the central sun) is suggestive of fire and the sun's life-giving heat.