I am particularly fascinated by the Chinese character that is pronounced SHIN & means faith or belief
I'm afraid that you are reading much too into this. There is no "meaning behind each stroke".

「信」(Baxter-Sagart OC: /*s-ni[ŋ]-s/, sincerity) is composed of semantic「言」(speech, here vaguely hinting at honest words) and phonetic「人・亻」(/*ni[ŋ]/).