What is the interpretation of the the dream the questioner had after performing Istikhara prayer, and what are the conditions and outcomes of Istikhara prayer?

The Istikhara prayer has no conditions other than the well-known conditions for prayer. If Allah answers the one performing it, He will destine for him what is good and expand his chest for it, either by making the matter easy or by averting it from him. The servant should be content with what Allah has decreed after Istikhara, and dreams have no relation to it.