People state, "Service to Man is Service to God." No doubt service of humanity is holy, but unless it is merged in the bigger ideal, people will not benefit from it, no matter how huge the magnitude of the service is. You must have faith in the essential divinity of every person and have the Lord in your mind. If you also adhere to the path of Truth and Right Conduct, then it will be considered as Service of the Lord. Mere repetition of the slogan is useless if the service is done without faith in the Divinity of all, and with an eye on the name and fame and fruits of one's action.