-If 'SESSION' is omitted, all the existing tracing session configurations
-are saved (equivalent to using the option:--all option). Otherwise,
-'SESSION' is the name of an existing tracing session. `lttng list`
-outputs all the existing tracing sessions (see linklttng:lttng-list(1)).
+Without the 'SESSION' argument::
+ Implicit option:--all option: *all* the recording sessions of the
+ connected session daemon for your Unix user, or for all users if
+ your Unix user is `root`, as listed in the output of `lttng list`
+ (see man:lttng-list(1)).
++
+See the ``Session daemon connection'' section of man:lttng(1) to learn
+how a user application connects to a session daemon.
+
+See man:lttng-concepts(7) to learn more about recording sessions.
+
+Use the `save` command in conjunction with the man:lttng-load(1) command
+to save and restore the complete configurations of recording sessions.
+
+The `save` command does :not: save tracing data, only the recording
+session parameters, including the channel and recording event rule
+configurations.