In istikharah it is not necessary that the correct aspect of the matter is shown in dream, even some dreams have reverse interpretations; therefore it is difficult to understand the indications of dream. You should see the tendency of your heart, you should opt for the aspect you to which you feel to be tended more submitting your trust in Allah. ما خاب من استخار one who performs istikharah he does not experience failure.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband