There is a lot of speculation about what this means floating around today yet no one seems to notice the completely obvious. They are talking about giving a mount to people that use the scroll of resurrection (to one or both I am not sure however).
All the facts add up to that with 100% certainty. I am not sure why people are debating, but some of the things people have suggested they think it means are really good. It sure makes for some interesting reading. People have some vivid imaginations.