Sometimes people get scared when they imagine themselves falling down. This is called a "fear of falling." When you imagine this, your mind makes you feel like you are really falling, even though you might be safe and standing on solid ground. This feeling can make you feel very nervous and afraid to do things that involve heights, like climbing a ladder or walking on a bridge. It's okay to feel scared sometimes, but it's important to remember that you are safe and can overcome your fear with practice and support from others.