Lembas is a type of bread from J.R.R. Tolkien's fictional world of Middle-earth. It is made by the Elves and is known for its ability to sustain travelers on long journeys. Wrapped in leaves, lembas is both nutritious and filling, providing energy for those who consume it. In the stories, lembas is often given as a gift to important characters, such as Frodo Baggins and Samwise Gamgee, during their quest in The Lord of the Rings. Its unique properties make it a vital resource for adventurers, symbolizing hope and endurance in challenging times.