Recurring dreams often signify ongoing stress or unresolved issues in your waking life. In your case, the imagery of the world crumbling around you and the crack in the earth may symbolize a feeling of instability or fear of loss of control in your life. The systematic downfall and progression to worse scenarios could reflect anxiety about impending changes or challenges you are facing.

The fact that you are aware it's a dream and learn from each experience suggests a level of self-awareness and a desire to confront these fears. Each iteration of the dream becomes an opportunity for you to understand your emotions and the pain you are experiencing, even if it leads to gruesome outcomes.

The theme of death and torture may indicate feelings of being overwhelmed or trapped in a situation that feels unbearable. It's crucial to explore what aspects of your life resonate with these feelings—whether it's relationships, work, or personal challenges.

Consider using these dreams as a catalyst for reflection. Journaling about your dreams and the emotions they evoke may help you process what's troubling you. Additionally, seeking support from friends, family, or a mental health professional could provide you with strategies to cope with the underlying issues causing these recurring dreams.