A bear in your dream symbolizes unseen danger and the fact that you are going to face a situation you will not be able to manage and handle, especially if the bear in the dream is attacking you. If your dream is populated by a bear, you are not going to be victorious over your opponents, because the situation overwhelms you. It is very probable that the real life situation refers to competing with someone else for the heart and love of your life partner.
If the bear is pursuing you in the dream, this may stand for negative outcomes, as you will probably be defeated by rivals, experience financial loss or the loss of the love of your life partner. However, if the bear is seen climbing, then the odds will be in your favor and you will win the competition, but only after spending large amounts of energy and effort.
Taking into account the fact that the bear is one of the animals who hibernate during the cold season, it may be interpreted as announcing a time in your life which is right for introspection, meditation and maybe reconsideration of your thoughts, aspirations, actions etc. Being a homonym for 'bare', the heavy animal in your dream symbolizes that it is high time for you to bare your soul and mind of negative feelings, thoughts and suppositions and have a fresh start.
Mother bear in a dream symbolizes maternal feelings, comfort, being over-protected by someone who is characterized by possessiveness. Following the same idea of maternity and being taken care of, bear cubs in one's dream stand for his strong desire to be over-protected and cushioned from unhappy events and people who may hurt them.