A lost wallet is read as a shaken sense of identity or security, not as an actual loss to come. Tradition sees it as worry about what you would be without your usual supports. Searching frantically is usually read as anxiety about being unprepared or careless. Finding it again stands for recovering confidence, while a stranger returning it points to trust in others. Discovering it was stolen rather than lost is linked to feeling taken advantage of. Such dreams often come during busy or chaotic periods. It can help to ask where something essential feels like it is slipping out of your hands.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.