Oracle 去 showed a person stepping away from a dwelling's mouth — departure drawn as body leaving shelter. Everything about 去 moves away from here: the opposite pole of 来 'come', the pair that orients all Chinese motion.
去 is the engine of plans: 去哪儿？'where are you going?' — the question that named a travel app empire. Last year is 去年, 'the year that went'. 去世 'leave the world' is the gentle word for dying — departure, not ending.
A person stepping out of the doorway — GOING.
来来去去 'coming and going' describes bustle; 去去就来 'just going, right back' is the promise every waiter makes.