I meditate. Have done since I was about 15 - Almost 50 years ago. Can do it for hours. Also practice Tai Chi and Chi Gung. Certainly very relaxing and helps me considerably but I cannot say it has ever enlightened me about anything metaphysical. It has made me realise that all the arguments people get into are pointless. Is that what you mean? Or are you going to use the old snake oil salesman's excuse that if it has not happened I cannot be doing it right?