Almost all of the mantras are already a part of a Stotra or an Upanishad or a fullfleged Sadhana or an Anushthana and were by no means intended to be used in isolation. However, over a period of time, some of the Pundits started compiling the mantras and formulated guides https://jeffreysrmet.theblogfairy.com/35988981/vashikaran-specialist-secrets