The deity Yuma Sammang (literally: "Mother Earth" or "Grandmother"), also known as Ningwaphuma, is widely revered and regularly worshiped among Yakthungs (Limbus).
Mundhum is a collection of diverse oral narratives addressing topics such as the creation of the universe, human beings, animals, and plants along with many other elements.
The Yakthung culture includes Mundhum performers, such as Phedangma, Yeba, Yema, Shamba, Samma, and Tutu-Tumyahangs.
However, many Yakthungs participating in mainstream politics, bureaucracy, and academic institutions have shown a tendency to ignore their Yakthung customary practices, Mundhums, language, and religion — Yuma Samyo.
New Yakthung generations have been campaigning for the restoration of their culture, language, identity, Mundhum, and religion since 2018.