What is grail definition?

A grail is a special vessel or dish that has been associated with mythology. It is believed to have mystical powers and is often associated with religious or spiritual significance. In Arthurian legend, the Holy Grail is said to be the cup used by Jesus at the Last Supper, which is considered as the ultimate symbol of divine providence and power. The quest for the Holy Grail is a popular and enduring theme in literature, mythology, spiritual traditions and art, and has been interpreted to possess different meanings by different cultures and people. It is also commonly used as a metaphor for something that is considered to be an ultimate goal or objective.