Does anyone who has successfully raised Kundalini tense the perineum as you raise energy into the base chakra to initiate the Kundalini rising? If so, how hard do you tense the perineum to initiate a Kundalini rising? Is it a mild tensing or do you tense up pretty strongly? Also, do you tense and hold it for a long duration while continuously pulling energy into the base chakra or do you do frequent tensing in short spurts?