You can hold a single torch in your hand while exploring a cave to see where you're going, saving you from constantly stopping to place them.
If you are looking for a standout feature in (typically associated with versions like Minecraft 1.19 or older legacy versions like 1.8.8 ), the most useful one is Dynamic Lights . Download OptiFine HD U H8
Go to Options > Video Settings > Quality and set Dynamic Lights to Fast or Fancy . Other Core Features in HD U H8 You can hold a single torch in your
Extends the view distance from "Tiny" to "Extreme" (up to 2x the vanilla Far distance). Download OptiFine HD U H8
Allows handheld or dropped light-emitting items (like torches, lanterns, or glowstone) to illuminate the environment around you in real-time.