Shurangama Mantra will be the longest as well as the most powerful mantra. Assuming that There exists just one particular person chanting Shurangama Mantra, There's right Dharma on this planet simply because demons, ghosts and various entities Will not dare to show them selves on earth. ॐ उड्डा महेष्वराय https://www.youtube.com/watch?v=eeXt928hL4U