Vocational Service Month is an  opportunity to begin year-long vocational service activities, ranging from Rotary  discussions to awards to community projects. ... The purpose of these talks is to promote vocational awareness among Rotarians and help them recognize the worthiness of all useful occupations.

Five Avenues of Service  explained. 

Rotary Club guiding principles include the Four-way Test (Truth, Fairness, Goodwill, and Friendship). Other principles involve Rotary's  commitment to Service above Self, which is channeled through Five  Avenues of  Service:  Club, Vocational, Community, International, and New Generations ...