The other day, someone visited me and asked, ‘I wish to practice zazen under your guidance. But because I live far away, I can’t come to [temple] very often. I’d like to practice zazen at home. What should I keep in mind to avoid doing zazen in a mistaken way.’ I responded, ‘If your wife and children say, “Daddy has become nicer since he began doing zazen”, then your practice is on the right track.’

Kōshō Uchiyama, Zen Teaching of Homeless Kodo

Some weeks after I read this, I was walking my daughter to her school bus stop. Out of nowhere, she looked at me and said “You’re less angry since you became a Buddhist.”