Something that is small (especially smaller than you would expect) in a dream can represent:
- Something you feel lacks power, strength, or importance
- Something vulnerable, overlooked, inadequate, ineffective
- Something that seems under control or that you'd like to have more control over
- "A lesser amount" or "lesser degree"
of whatever the object or person represents (or example, if a car
represents personal power, then driving an undersized or "kiddie car"
might mean you're feeling unempowered in your life)
Something in miniature form can represent an idea that your subconscious wants to try out
on a small scale during the dream to see what it feels like before
experiencing a bigger or real-life version.
For more clues, look at what the small object or person represents.