Probably, it is considered as a common matter for everyone to encounter/see many dreams during his/her daily or nightly sleeping. Occasionally, it is said that some of dreams could have actual Ta'bir/Tafsir (interpretation), and actually they will be happened in the future.
So, I was wondering if we can trust our dreams. If so, how much can we trust them as actual happenings which are going to be happened in the future? Is there any related hadith (tradition)?