The toddler in this YouTube sweetly passes on what others have said to her. For generations, mothers have often tried to soothe their fraught children with three simple words, “You’re okay.” As a child wails and reels from known and unknown causes, a mother will try to calm and reassure her child with, “You’re okay, you’re okay.” My mother probably said it to me, I said it to my children, and I watch them say it to their children. And their children will probably say it to their children. Mothers know more than their children, they know that things will be okay, things are not as bad as they seem,…