Minecraft is adding a bunch of new things in the 1.16 update, and one of those is the Soul Fire Lantern. This is a new Lantern type that requires some resources from the Nether. Lanterns are an alternative to Torches when it comes to lighting. You can place Torches onto walls, but you can't hang them from the ceiling. That's where Lanterns come in, they give you the ability to hang them and present a bit more of a design element to work with for your creative builds.
How-to Make a Soul Fire Lantern
These are relatively easy to create, it's just going to take a bit of doing to obtain the Soul Soil that is required to create them.
Step 1: Go to the Nether
You will need to make a Nether Portal to get to the Nether. This generally requires you to harvest obsidian, make a 4x5 rectangle, and light it with a Flint and Steel. Jump into the purple portal and you will find yourself in the Nether.
Step 2: Look for a Soul Sand Valley Biome
The Soul Sand Valley Biome is a new biome type that you can find in the Nether. Soul Sand has existed for a while, but now there's new resource called Soul Soil that can be found in the same areas. Soul Sand is kind of creepy looking and slows you down when you walk through it. Soul Soil has a similar color, but is wavy and doesn't slow you down. You'll know you are in the right place if you see some blue flames coming off the soil. Harvest some of the Soul Soil, you will need one for every four Soul Fire Torches you want to create.
Step 3: Craft Soul Fire Torches
Now that you have the Soul Soil, you'll just need to gather some Coal or Charcoal and a stick. Throw them into your Crafting Table and you will get 4x Soul Fire Torches for each batch of ingredients you put in!
Step 4: Craft Iron Nuggets
You will need an Iron Ingot to craft Iron Nuggets. Stick the Iron Ingot into your Crafting Table and it will give you 9 of them! If you don't have an Ingot, you can throw any Iron tool, armor, or weapon into a Furnace and you will get an Iron Nugget for your troubles.
Step 5: Craft the Soul Fire Lantern
Now that you have the Soul Fire Torches, stick one of those in the middle of your Crafting Table. Surround it with Iron Nuggets and you will have yourself a Soul Fire Lantern!
So, how do these compare to the regular Lanterns? Well, they emit less light than regular Lanterns, so if you are just looking for general lighting then you are better off going with the originals.
However, Soul Fire Lanterns have one particular use other than looking cool. Soul Fire Lanterns do not melt snow or ice when they are next to it. So, if you're building a snow base or igloo and are looking for some lightning that doesn't melt it all down, then you can use these!