Opening or balancing your chakras ? Please help .?

I know that you can balance your chakras through meditation and I have tried it . I don't completely understand though . I have read about it . Can some one please explain to me everything they know about chakras . ? How do you know if you have balanced or done anything with your chakras . ? Is it true that by opening your crown Chakra you can experience another person's experience as if you were inside them . ? Has anyone ever done this . ? I really want to try meditating again but I just need help understanding . Please help