It's never a good idea to wake the dead, or to try to communicate with spirits. You never know what sort of sleeping beasts you may awaken. But, if you're really keen on it and are wondering how to conduct a seance of your own, check out this video. You will get a quick tutorial on how to set the mood, place the food offering, call the spirit and speak with it. Also includes some troubleshooting tips, should things go awry, in which the most inevitably will.