In the ever-growing areas of Augmented Reality (AR), Virtual Reality (VR), and the expansive Metaverse, computer vision brings together the digital and physical worlds seamlessly. Its ability to understand and interpret visual information pushes these immersive technologies to new levels, enhancing user experiences, driving creative innovations, and exploring new frontiers. On the other side, Natural Language Processing (NLP) is pivotal for deciphering human language and facilitating applications like translation and summarization. Large Language Models (LLMs) are now capable of human-level conversational skills, drastically enhancing human-machine interactions. As exemplified by CLIP and other multimodal foundational models, textual information plays a significant role in understanding visual data. Furthermore, as a consequence, these large models may contribute significantly to improving AR, VR, and the Metaverse, enabling hands-free navigation, voice-based commands, and immersive communication between avatars.