When setting a workflow rule based on Date/Time field, the Recur setting does not seem to make sense. If I want the rule to execute at a specific amount of days relative to a date field, what exactly would the recurrence be? That point in time would only occur once. 

Is the Recur setting determining when analysis to find records should recur, or would any record matching the criteria trigger the rule at any point in time? 

Additionally, does the record have to exactly match the specified time criteria or will any records 2 months after last activity date or longer be considered? 

The scenario I am trying to solve is automatically adjusting a Lead Status after a set period (2 months) of inactivity. The setting I am currently using is as follows: