Mantras are Sanskrit-invocations of the Supreme Being. Reinforced and propelled by japa meditation, they pass from the verbal level through the mental and telepathic states, and on to pure thought energy. Of all languages, Sanskrit most closely approaches telepathic language because of its affinity to the fifty primeval sounds. It is the most direct way to approach the transcendental state.
Mantras cannot be concocted or tailor-made for the individual, despite some current claims. They have always existed in a latent state as sound energies. Just as gravity was discovered but not invented by
Neither Mantra, deity nor guru, once chosen, should be changed. There are many paths up the mountain. Perseverance on one alone will bring the aspirant to the top faster than if he were to spread his energies in exploring all the alternative paths.