Is it possible to fly?

Many times I see myself flying/floating in dreams. Not so high, but 1-2 feet above the surface. I make a second step upwards before my first step touches the surface/while my first step also holds up in air. Last night i was asked by myself (in the dream) how I am doing this. I don't know why but i replied 'its all about breath control'. Whenever this flying happens in dreams, it leaves behind an amazing experience. I recall everything of those scenes. Whenever I breath-in, I raise up in parts and whenever I breath-out or lose control, I touch back the floor. Almost 1 year back I had watched a programme on discovery channel which was about a monk who can fly/stay uplifted. I wish to know, 'is it possible to actually fly? If yes, then how? If yes, then why one should do this 'as per buddha?