2 – MERLE, DARYL AND HALLUCINATIONS – The second hypothesis is that Merle appears to Daryl exhausted, in the form of hallucination. Happened before, it could happen again. The link between two brothers, despite the diversity, has always been incredibly strong, and it’s therefore possible that the archer will find yourself in front of him the old brother died. Maybe in a difficult situation for Daryl, Merle would look like it was part of his conscience, to restore strength and re-motivate him in a difficult situation. Also this hypothesis more than plausible, but it’ already happened a similar thing, tend to be discarded.