Per dictionary, a dream is an image or thought that we experience as we sleep. Some dreams can be fictional, while others are based off of actual people we know or places we have been. Often times our deepest and darkest fears creep into our dreams, causing us to have vivid nightmares. Yet sometimes we are lucky enough to experience a positive dream that portrays our innermost desires, whatever they may be.
Our body goes through five different stages of sleep and frequency of our dream depends on how many times we experience that particular stage of sleep. Generally, waking from the active stage of sleep called Rapid Eye Movement (REM) results in people remembering their dreams. Most people experience three to five intervals of REM per night, so there is quite the opportunity to remember a dream if you just happen to wake up during this stage.
Lucid dreams occur when you realize that you are dreaming and you wake up inside the dream. In lucid dreams, one can consciously dream and control events. With some practice, anyone can lucid dream and perform impossible tasks like flying and change your surroundings, all while being aware of one's presence in the dream. Lucid dreams can feel as real as real life where you can hear, see, smell, taste and even feel everything near you. In normal dreams, your self-awareness is shut down. That's why they often feel fuzzy and distant. But when lucid, the conscious brain wakes up during sleep.