Dreams involving animals, particularly bears, can often symbolize our instincts, emotions, or challenges we face in waking life. In your dream, the bear may represent a looming threat or fear, particularly concerning your family, especially your son. The cabin by the woods suggests a place of safety and intimacy, but the intrusion of the bear indicates a disturbance to that peace.

Your attempt to scare the bear away without waking your family shows your protective instincts and desire to shield your loved ones from harm. The fact that you were able to successfully scare the bear away reflects your strength and resourcefulness in confronting fears. However, the bear returning and needing to be killed could signify a recurring challenge or a problem that you feel you must confront aggressively in order to protect your family.

This dream may reflect feelings of anxiety or responsibility you carry regarding your family's safety and well-being. It could be beneficial to reflect on any current situations in your life that might be causing you stress or fear, especially those related to your loved ones. Consider how you handle challenges and whether there are healthier ways to confront issues rather than resorting to conflict.

Overall, this dream emphasizes themes of protection, fear of loss, and the struggle to maintain safety for those you care about. It might be helpful to discuss any underlying worries you have with someone you trust or find ways to address those feelings constructively.