Kundalini meditation, isn't that meant to raise a lot of energy? Ideally, you would want to meditate heavily on your chakra system and really make sure they are active and pumping in which to have something to draw up the central channel. It could be that you were overcharging your system, causing the pain.
Those monks that can self-immolate have certainly mastered chi control. There are stories of yogis who have been buried on purpose for months then dug back up and regained consciousness.
Pretty standard diet. A raw food diet can increase energy. I've also heard reports of people needing barely any sleep while fasting, but that is after the detox phase I think. Look up Shivambu which is a controversial fasting technique related to this.
Those monks that can self-immolate have certainly mastered chi control. There are stories of yogis who have been buried on purpose for months then dug back up and regained consciousness.
Pretty standard diet. A raw food diet can increase energy. I've also heard reports of people needing barely any sleep while fasting, but that is after the detox phase I think. Look up Shivambu which is a controversial fasting technique related to this.