Mani Jewel
A Mani Jewel (Chinese: 摩尼珠; pinyin: móní zhū; Japanese pronunciation: mani ju) or "maṇi-ratna" refers to any of various jewels or crystal mentioned in Buddhist literature as either metaphors for several concepts in Buddhist philosophy or as mythical relics. The word mani is simply Tamil, Sanskrit and Pali for "jewel", so the phrase "Mani Jewel" is in one sense redundant.