The fact that all humans and even animals dream every night or when they sleep cannot be over emphasized. Yes, interpreting such dreams by dream experts could equally be considered as old as Methuselah or dreaming itself. 
However, the fascination of humans is to know what is actually responsible for dreams and indeed what these dreams mean! 
Talking about dream interpretation, which can be traced to 3000-4000BC since clay tablets were used to record interpretation of dreams at that time and these tablets were later discovered by archeologists. 
It was also thought that primeval persons had a hard time differentiating between the dream world and the real world as they were thought to believe that the dream world was just an extension of the real world. However, the dream world was reckoned to be more powerful than the physical world around them. 
Nonetheless, the ancient Roman and Greek empires were so passionate about dream interpretation to the point of making sure that interpreters of dreams accompanied military leaders and generals to battle fields. This is to the extent that dreams were no taken lightly as dreams where seen by these empires as warnings or messages from their deity. 
The ancient Egypt was not also left behind in the quest for dream interpretation as they believe that dreams have religious connotations and so, their priests equally functioned as dream interpreters. 
Yes, ancient Egyptians recorded dreams as part of important items in form of symbols or hieroglyphics.
Again, anyone whose dreams seemed significant were believed to be specially blessed people and given preferential treatment as well as were treated as ‘gods’. Also, persons who could interpret dreams were believed to be specially endowed by their gods and were equally treated with dignity in these ancient societies. 
However, if we are to refer to the bible, you will find that there are over 700 declarations of dreams and persons in biblical who eras equally held dreams in high esteem. Thus, the fact that dreams and their interpretations are cited in most books of the bible; both old and new testaments cannot be over emphasized. 
Well, I want to invite you to my world of dream interpretation as you go and get your copy of the book:"Dream Interpretation and Dream Meanings Guide:The Ultimate Dream Psychology and Psychoanalysis for Beginners Seeking Dream Meanings!" Yes, and you can truly start to get the meanings to your dream from today.