The rose is a symbol of love and if you were dreaming of a rose, it can allude to romance. If you had thoughts and interactions with romance or dating, that may trigger dreams of romance. In dreams, symbols and metaphors appear, rather than the direct illusion. The symbol that is used by your brain to communicate the message, is something that you know and relate to.
If you dream of receiving a rose, it can mean you expect someone to approach you with romantic notions.
If you dream of giving away a rose, it can mean you expect to show love to your target.
Dreams of roses are especially common during festive seasons like Valentine’s Day, and other special days when dating, relationships and romance are celebrated.