Dreaming of being bankrupt means you are about to face financial difficulties which may lead to drastic lifestyle changes. In your waking hours, try to figure out reasonable measures to tackle the obstacles that will be your undoing. Seek out friends and family who are able to help your through the impending financial hardships.
Dreaming of a bag means you are holding on to too many burdens and troubles. The bag is a constant reminder that these things need to be taken care of, and will not simple go away by itself. In your waking life, take account of all the outstanding issues that require your attention, and go fix them. Otherwise, you will always be holding the bag with no momentum of ever moving forward with your life.
Dreaming of hidden means you are seeking an important item or belonging in your life. The funny situation is that things are never found when you are searching for it, and always turn up on their own at the unlikeliest of place when you have turned your mind to something else.
If this hidden dream continues to bother you, refocus your mind on something else other than the missing items.
Dreaming of back biting means you are about to do harm to someone without them knowing. Whatever you do is towards the goal of sabotage. This is similar to back stabbing, and worst in that this person may be very close to you.
Once you are awake from the back biting dream, try to understand why you are doing what you may do, and refrain from the possible bad actions to cause anyone harm.