"To spend the entire day in a perfectly holy, peaceful, and sinless manner, the only means is the most sincere, fervent prayer in the morning after waking from sleep. It will bring Yessou with the Father and the Holy Spirit into our heart and thus give strength and fortitude to the soul against the attacks of evil; one just needs to guard one's heart."
January 1, 1970
https://en.wikiquote.org/wiki/John_of_Kronstadt