I dreamt my brother died along with my mother who died long ago and he woke up from the casket
Dreams about death can be unsettling, but they often symbolize new beginnings or endings in one's waking life rather than actual deaths. In this dream scenario, the fact that your brother woke up from the casket could symbolize a sense of rebirth or renewal for him or for your relationship with him. It may also indicate that there are unresolved emotions or issues related to your brother or your mother that need to be addressed.
The presence of your mother who passed away long ago in the dream could represent unresolved feelings of grief, loss, or unfinished business with her. This dream may be prompting you to confront and process these emotions in order to move forward in your life.
Overall, this dream may suggest a need for emotional healing, closure, or transformation in your relationships with your brother and the memory of your mother. It could be a reflection of your subconscious trying to work through past trauma or emotions that still impact you in your waking life.