Like all containers, it is a symbol of the feminine and conservation. In general, dreaming of a jar or jug can be interpreted as a call to attention for the dreamer, since the message, in this case, will deal with the need to attend to your feelings (you have "dried up" from too much activity). Depending on the liquid the jar contains, the message may vary some. (See DRINKING and CUP)
Sleeping can help with the overall well-being than avoiding irritability. A lack of sleep can easily contribute to depression, but having a good one could easily change your mood or alleviate your anxiety. With a good night's sleep, you'll surely have emotional stability and balance.
Dreams reflect our actions that we have already performed. Most of us have dreams activities relating to our past life. One of the common dreams that every individual has gone through is their experiences during the school life, where you would get images of teacher hitting you, making you feel numb and shameful.