Usage: /detach [blurb]
There are two mechanisms by which you can leave lily: detach and bye. When you
choose /detach, you are asking the system to keep you around and save any
messages sent to you and any notifications you are interested in.
When you set a blurb while detaching with "/detach blurb" the system will set
the blurb and then detach you. If the blurb-setting fails, then the detach will
be aborted.
(see also: bye, blurb, notify)