“whoa. how interesting! and dreams on shabbos have a special meaning. why don’t you speak to a mekubal about this?”
The dreams of big big tzaddikim once in a while can have truth to them. As for the rest of us, never happens. You can look it up in Derech HASHEM, i think it’s at the end of chelek 2 where he talks about dreams, vast majority of people fall under the category of those whose neshamos go up and consort with demonic untruthful beings who do not relate to them pearls of truth; furthermore, and really obviating the need for the previous point, is that even if your soul actually is granted something real, it just integrates into your dream in some aspect that you’ll never recognize or be able to distinguish or even to know what it is that you’re looking for.