Bīja mantras are considered the phonic representations of various deities, however most of them, including hrīm and klīṃ, are useful for a number of distinct deities. Various mantras have various meanings and effects, and Markoe Schieffelin clarifies that meditating with a mantra silently, or chanting it out loud, may help https://www.youtube.com/@Mahavidyabaglamukhi/