There are so many mantras out there? Why is the Hare Krsna mahamantra considered to be the most powerful one?
Mantras are all invested with power. Previously, there were sages, who by chanting mantras, could do many things. Some people were fighting with mantras. Now we think we are very sophisticated these days; we have missiles for instance. But in the old days, you could just chant a mantra and invoke a great power. So mantras are known to have all kinds of powers. People could light fire by