What does my sister-in-law’s dream mean?

Please reply meaning of the following dream seen (saw Prophet s.a.w.) by my sister-in-law: During menses days at around 9.00 a.m. she saw in dream that – she is looking from a wall. Yellow light is there all around. Many Sahaba are standing on other side of the wall. At a distance, Prophet, Huzoor Sallallahu alaihi wasallam is sitting among them and saying something which she didn??t listen. He is different among them in long white clothes. But His face is not looking clearly. There is shadow at His face. He is giving some instructions (naseehat) to Sahaba. All Sahaba are quiet. There is a small chowki on which there is kept Quran. Suddenly one leg of chowki is broken. It seems happen due to Wahee nazil hui hei. Then Quran is opened and seen ?? one Ayat nazil hui hei which means that a good news (khushkhabri) is given that Huzoor Sallallahu alaihi wasallam Jannat ke waris hein and now the time has come for His departure from this world. Then Sahaba and my sister-in-law starts weeping. But there comes the sound of fire-crackers from the sky, happiness is being obsereved there up in the sky. But the shining of fire-crackers is there and noise is not there. Sky is glittering with the stars also. And my sister-in-law is weeping very much and she is thinking at that time that kaash mein bhi us wakt hoti and she has the realization also that she is looking dream. Then she moves aside from the wall weeping then comes out then her second foot-step is at the threshold of her house. But when she opens the door, the moon is looked there in front which is not complete yet but that is very beautiful. And she is thinking that she has had strong desire to see moon in the dream so have seen today. She also realized that she was looking dream. Then her eyes got opened. Then after feeding her child after sometime she recalled that she had seen that dream.