Protection and warmth, hiding, being secretive.
To be under the same cover with someone else indicates intimate connection and trust.
Depth Psychology: What are you hiding from yourself or others? What are you ashamed of? WTio do you wish would keep you warm? What would you really like to “cover up”?... Dreamers Dictionary
The symbolism of the object or the idea will be important. Discovering a jewel, for instance, suggests something that is precious from an emotional perspective.... Dream Meanings of Versatile
Depth Psychology: This dream indicates that yours is a resdess, questioning, searching human mind. Dreaming about a discovery often means far-reaching changes in your life. It might also indicate that your views and vour actions are too theoretical or idealistic. See Uranus. Finding or discovering something is a warning—don’t rely too much on good luck.... Dreamers Dictionary