Shavua Tov. Rabbeinu Bechaye makes an interesting observation about the numbers seven and eight. We consider seven to be טבע, which is nature or following the natural order of things.
Eight, on the other hand, reflects למעלה מן הטבע, above nature, or the supernatural.
Moshe Rabbeinu served as כהן גדול for seven days before the משכן was dedicated. But it was only on the eighth day, when Aharon wore the eight garments of the High Priest, did the Shechina, the Divine Presence, rest on עם ישראל.
As a people, we have survived למעלה מן הטבע. No nation that has endured such a long and bitter exile, could overcome what we have.
When all is said and done, maybe everything is למעלה מן הטבע, as even natural things should not be taken for granted. Trust in Hashem is always the most natural way to go!