Gus woke up suddenly and sat straight up in bed; sweating, heart pounding and stomach queasy. It was the recurring dream again; the one in which he had forgotten something very important; vital. It was as though completely missed an appointment with the prime minister, because he'd been playing computer games or watching movies, or something. He'd not only missed the appointment, but would have been unprepared, even if he remembered at the last minute.
That was it, thought Gus, stared into the dark, waiting for the adrenaline to wear off, it's less about forgetting something, and more about being unprepared.
He tiptoed out of the room to get a cup of water and relieve himself, glad he hadn't woken his wife like he often did. She always asked about the dream and it's meaning. This only distracted him from catching pieces of the fragile dream memories as they dissolved, once again. He tried to catch them now, in the dark. What does it mean? What am I unprepared for? What is so important, so urgent?
It wasn't until the next morning that Gus's wife found his body on the toilet; and then she understood.