Your dream seems to reflect a mix of personal and external challenges, as well as themes of family, responsibility, and transformation.

1. Traveling to the city: This could symbolize your journey through life or personal growth. The city often represents opportunities and social interactions, but encountering a riot suggests that you may be facing chaos or conflict in your waking life.
2. Going home: Returning home may indicate a need for safety or comfort amid turmoil. It shows a desire to retreat and gather your thoughts or resources.
3. Brother and the toilet: The toilet can symbolize the need to release emotions or deal with personal issues. Your brother’s presence might denote familial support, or perhaps it reflects your feelings towards responsibilities that others have in your life.
4. Overworking and accusations: This part of the dream may highlight feelings of stress or pressure you are experiencing in your waking life, perhaps in your job or personal relationships. It could also suggest a fear of being judged or not measuring up.
5. Cleaning the toilet: This action can signify a desire to cleanse or purify certain aspects of your life. It may reflect your need to take control and ensure that you are dealing with your responsibilities.
6. Fortified window: This symbolizes a desire for security and protection from outside influences. It shows that you are taking steps to safeguard yourself from chaos or negativity.
7. Guru and time capsule: The guru may represent wisdom or guidance. The time capsule filled with unknown valuables can symbolize hidden potential or forgotten aspects of yourself that are now being uncovered. The snake could represent transformation or healing, as snakes often shed their skin.
8. Calmness and control: This is a positive aspect of your dream. It suggests that despite the chaos, you feel you are managing your situation well.
9. Final bus ride with your brother: This signifies moving forward together, possibly implying a journey toward new experiences or a shared goal.

Overall, your dream reflects a journey through challenges, the importance of family support, and a quest for personal growth and understanding. Consider what aspects of your life may require attention or cleansing, and embrace the transformation that comes with facing your fears.