Assaloalikum. I am engaged since 2 years but I feel my fiancé is not interested in me and I have a lot bad things about him like he has done zina and he drinks etc etc and once I asked him so he agree that he is not virgin and yea he drink too.. He is my cousin and I can't break my engagement like this as family issue will raised and many problems so I was very confused and asked my mom to do istikhara and she done istikhara and she dream that there is a tall building and light grey smoke coming up and she and her brother( my would be father in law) both are seeing it. Now please tell me what this dream mean and do we have to do istikhara for 7 days? Please tell me.

Thank you

What is istikhara first of all?