If you dream a jar, the dream symbolizes the female uterus. You are looking for protection. The dream may also be a pun on feeling "got stuck" or intimidated by anything or anyone.
You may look in dreams interpretation for other symbols :
Jaundice : If you dream that you or someone else has jaundice, the interpretation is about indecision. You have problems coming to a decision about something. Alternatively, ... html">
Jaws : The meaning of dreaming about an animal's jaws is related to a misunderstanding. This may mean that you rush things. Alternatively, the dream's interpretation ...