"Heading back" refers to the act of returning to a previous location or point of origin. This phrase is commonly used in various contexts, such as traveling, commuting, or even in casual conversations when someone is going home after an outing. It implies a reversal of direction, often after completing a task or activity. In the context of travel, "heading back" can involve retracing one's steps, whether by foot, car, or public transport. It signifies the end of a journey or visit, and can evoke feelings of nostalgia or anticipation for what awaits upon return, such as family, friends, or familiar surroundings.