Furthermore, their preaching and way of worship have penetrated national and racial groups worldwide and have been embraced by people young and old, at every economic and educational level.
उन सभी को उस संगठन के इतिहास के बारे में अच्छी तरह जानकारी होनी चाहिए जिसके साथ वे सम्बन्ध रखते हैं ।