If you want to add and grow bright berries to your Minecraft, you need to take a few steps to make it work. Glow berries can be quite a fun item. Instead of adding light or a torch to the room, you can place a cave vine somewhere in the base and let it grow bright berries. The berries light up when they are in the vineyard, and when they reproduce naturally in the world, they also have a strong glow. However, if you hold the object, it does not light.
First you need to get the berries. Under normal circumstances, they reproduce in lush caves from cave vineyards. However, these were not added in Minecraft 1.17, the first part of Caves and Cliffs. Even if lush caves have not been added, you can still get your hands on the vibrant berries. You will find them inside the mine shaft chest. You can find a mineshaft by digging into your Minecraft world, sometimes under the oceans, but not so often. You will know that you are approaching one by the distinct wooden pillars that hold it, along with the orcs and spiders that appear in it. The chest inside the mine shaft has a chance to contain the glow of the berries.
Once you have the berries, all you have to do is take them back to your settlement and place them under any block you want them to hang from. When you put them down initially, it will look like a small tuft of grass hanging from the ceiling. These are cave vines. If you want cave vineyards to grow and produce shiny berries, you need to give it bone meal. It emits bright light and requires no energy, which is a huge plus. You can regularly grind mine shafts in your world to find more and add them to your home.
When you come across a cave vine, the object drops the berries, but not the vine. You can regularly add bone meal to them to produce more berries, so you don’t have to crush mine shafts in your world to eat berries reliably.