Easter is a Christian feast and holiday celebrating the resurrection of Jesus Christ on the third day after his crucifixion at Calvary as described in the New Testament. To understand how the resurrection of Jesus Christ correlates to the spring equinox, you have to understand what Jesus Christ actually is.
This will offend a lot of people but Jesus Christ is a sun god. He is the anthropomorphic representation of the sun in bronze age Palestinian mythology. The Christian bible is nothing more than selected passages during the iron age of bronze age Palestinian mythology which in turn came from stone age mythology from Babylon or modern day Iraq.
Regardless of the Christian history the spring equinox is celebrated through the world and in every culture. The ancient Saxons in Northern Europe worshiped the Goddess Oestre at the time of the Spring Equinox. The Goddess Easter represents the sunrise, spring-time and fertility, the renewal of life. The story of the Roman god, Mithras, is similar to the tale of Jesus Christ and his resurrection. Born at the winter solstice and resurrected in the spring, Mithras helped his followers ascend to the realm of light after death. The indigenous Mayan people in Central American have celebrated a spring equinox festival for ten centuries. As the sun sets on the day of the equinox on the great ceremonial pyramid, El Castillo, Mexico, its “western face…is bathed in the late afternoon sunlight.
Many myths revolve around the astronomical event but there is nothing magical about it other than what we make of it. Happy Easter.