-This is a more rigid mode of operation in which the region always
-``lasts'' only until you use it; you explicitly must set up a region
-for each command that uses one. In Transient Mark mode, most of the
-time there is no region; therefore, highlighting the region when it
-exists is useful and not annoying. When Transient Mark mode is
-enabled, Emacs always highlights the region whenever there is a
-region.
+This is a more rigid mode of operation in which the region ``lasts''
+only until you use it; operating on the region text deactivates the
+mark, so there is no region any more. Therefore, you must explicitly
+set up a region for each command that uses one.
+
+ When Transient Mark mode is enabled, Emacs highlights the region,
+whenever there is a region. In Transient Mark mode, most of the time
+there is no region; therefore, highlighting the region when it exists
+is useful and not annoying.