Christians benefit from a closer look at the Biblical Fall Feasts, because, among other things, they foreshadow Christ's work in days to come. We have hindsight to help us see how Christ fulfilled Passover, Unleavened Bread, First Fruits, and Pentecost. We need foresight to see how he will fulfil Trumpets, Atonement, and Shelters.
This helps us understand why there are two New Years in the Jewish calendar: the religious-year cycle of teaching starts with Trumpets, but the calendar-year starts just before Passover. Some people start their spiritual lives at the beginning with Creation and the Old Testament (Jewish), but some start with Jesus the Passover lamb (Christians).
The religious annual cycle begins with Creation, the First era:
Whether you start with Creation, or start with Christ, the Feasts commemorate the whole of history, from the very beginning to the very end of the age.
I returned to Israel in March 2017 (having first visited in 2013) to personally show 18 Aussies the Core Sites of the Core Stuff - where the key events occurred that founded Christianity on solid, historical foundations.
As tour leader, I had less time to process the journey, but on the upside I could take the tour where I wanted to go in the time available. We squeezed a lot in - maybe too much if you count that one time I forgot lunch! But it was worth it!
It became a presentation, CSI: Christ Scene Investigation. We personally investigated how the sites agree with the texts of the Core Stuff. We saw for ourselves: