He left them, and they took off immediately for Jerusalem in order to find the Eleven and tell them what had happened. They spoke about how their hearts had burned within them when He opened the Scriptures to them. Manufacturers of antacids often refer to a very uncomfortable condition which, to say the least, can leave a bad taste in your mouth. It's called heartburn. The Emmaus disciples had burning hearts of a different nature entirely.
Home is a place of warm hearts and gentle people.
A church can also be such a place. At such churches, visitors will go on and on about the warmth and friendliness of the people. They may even describe their visit as a heartwarming experience. I suppose that those who find a different experience never return, so we are not likely to hear about the cold shoulder which, like heartburn, can leave a bad taste in the mouth. Nothing can be done about that later.