Even if you don't remember your dreams, chances are that at some stage whilst you're asleep, your brain has fallen into this imaginative fantasy state. Most of these distinct dreams last for like five to 20 minutes and the reason behind why this occurs has a lot to do with both our psychology and our neurology. Dreams they are essentially an involuntary hallucination that occurs when our brains are recharging and resting. Some of our dreams can be incredibly pleasant and sweet and on the other hand we have people who are haunted by constant nightmares. Regardless of the content of your dreams, the same process actually occurs. The role of daydreaming as a form of escapism is still not fully understood