They're Able to only become successful by means of utkilan or unlocking with requires veneration and worship rituals of Kāla Bhairavaācāra Guru Manḍala. One does the utkilan, abhishincana , tarpan as well as other rituals to access the sadhana tactics of Kāla Bhairavaa by accomplishing the worship ritual of Kāla https://www.youtube.com/shorts/0vLISs2kzMI