In this lesson, the discussion revolves around multiculturalism and subcultures in Malta. It highlights the presence of diverse groups such as Muslims, people of different skin colors, and various nationalities including British, Italians, Bulgarians, Germans, Russians, and others residing in Malta. The lecture explains that while Malta has a dominant Maltese culture characterized by local food, language, and festivals, there are also subcultures that practice distinct traditions, religions, and lifestyles that differ from the mainstream culture. Examples of these subcultures include the Chinese community and the Muslim community in Malta, illustrating the rich tapestry of cultural influences in the country.