I am percolating from the top of my head.
Maybe 852 is force... my friend who goes fast and uses 852 often to communicate.
I never though of it til now but maybe it is more Base tone: penetration-placing the words for another to hear outside of their own will (possibly if no key and lock is present).
528 (confidence) 174(pain relief) 396(grounded-sensual) and 639(compassion) are my main frequencies 💞 though after a few days...
I still feel I need to get more comfortable with 417 (sacral-trauma for me) 741(Open-Sound) and 963(peace and the bigger smallers)
I was taught 852 frequency is made for entering and connecting before most words and not before numbers and dreams. Am I too comfortable 555