And whenever I’d complain or was upset about something in my own life, my mother had the same advice: “Darling, just change the channel. You are in control of the clicker. Don’t replay the bad, scary movie.

The people we invite on the train are those with whom we are prepared to be vulnerable and real, with whom there is no room for masks and games. They strengthen us when we falter and remind us of the journey’s purpose when we become distracted by the scenery. And we do the same for them. Never let life’s Iagos — flatterers, dissemblers — onto your train. We always get warnings from our heart and our intuition when they appear, but we are often too busy to notice. When you realize they’ve made it on board, make sure you usher them off the train; and as soon as you can, forgive them and forget them. There is nothing more draining than holding grudges.

It’s not ‘What do I want to do?’, it’s ‘What kind of life do I want to have?’