The video explains some CLIL principles that are essential to keep in mind. It clarifies the three main focuses, which are language of learning about the vocabulary and grammar needed to understand the subject, language for learning about skills such as debating or presenting ideas, and language through learning about how learners develop language naturally as they engage with the content. Moreover, it emphasizes the importance of deep learning and cognitive development. This encourages students to think critically and solve problems instead of memorizing facts. Finally, the video analyzes the role of cultures in CLIL. It helps learners appreciate different perspectives and connect their learning to the real world. It is a great way to make learning more meaningful and engaging.