A beast is a four-footed mammal that is distinguished lower than a human being. Many different animals could be considered a beast, but the word can be used to name an animal you cannot identify.
Positive: Dreaming of a beast could symbolize a wild animal that can be holy (the beasts that dwell at the throne of God).
Negative: Seeing a beast in a dream could represent the antichrist or the devil.
(Revelation 4:9; Ezekiel 25:13; Jeremiah 12:9).