जिव्हां कीलय बुद्धिम विनाशय ह्रीं ॐ स्वाहा The mantra can be chanted the two vocally and mentally. Silent chanting (manasika japa) is frequently practiced when it’s impossible to chant out loud, or when trying to get a far more internalized exercise. Get in touch with to purchase the Kali Yantra https://www.youtube.com/@Mahavidyabaglamukhi