Love Rainy Weather....
Sorry to go full nerd on your post op but look at how well those mosses are placed to catch raindrops! At the end you can see them and their leaves fully out and expanded. This is because mosses have complex architecture built around water and how to retain it.
Here’s a similar moss on one of my samples, when mosses dry they aren’t dead (they’re another secret 3rd thing), and you can see all the leaves are closed up really tightly around the stem.
Here’s a picture after its all floofed up! On the top the leaves are still semi-expanded and at the bottom they are fully or mostly expanded. You can see how much water they are holding. This is because mosses typically only do photosynthesis when they have enough water and light! Even though it’s very stormy and dark in the video, mosses in forests can survive on just 1% of the light that reaches the top canopy!