Many of the mantras have been a part of a Stotra or an Upanishad or simply a fullfleged Sadhana or an Anushthana and were being under no circumstances meant to be used in isolation. However, in excess of a time period, many of the Pundits started off compiling the mantras https://hanumanshabharmantra61599.onesmablog.com/world-famous-tantrik-an-overview-77750430