It sounds like you had a vivid and potentially lucid dream experience. Lucid dreams occur when you become aware that you are dreaming while still in the dream. This awareness can often lead to a sense of control over the dream environment and your actions within it.Your description of the dream sequence you had during meditation reflects some key elements of a lucid dream:1. Vivid Visualization: You began by visualizing yourself in a village, and as you continued to focus on the meditation, the scene transformed into a forest and then near an ocean. Vivid and shifting visuals are common in dreams, especially lucid ones.2. Control and Intention: Your ability to transform your clothes into swim trunks and will yourself to swim underwater points to a level of control and intention that is characteristic of lucid dreams. In lucid dreams, you can often manipulate the dream environment and even your own actions.3. Altered Perception: Your experience of breathing underwater also aligns with the altered sense of reality that often accompanies lucid dreams. In lucid dreams, things that would be impossible in waking life, like breathing underwater, can feel completely natural.It's worth noting that the practice of meditation and altered sleep patterns due to night shifts might have contributed to the vividness and lucidity of your dream. Meditation can enhance awareness and may even promote lucid dreaming in some cases.If you're interested in exploring lucid dreaming further, you could consider techniques specifically designed to induce and enhance lucid dreaming, such as reality checks, keeping a dream journal, and practicing mindfulness throughout the day. Lucid dreaming can be a fascinating and creative way to engage with your subconscious mind and experience different realities. Remember to approach these experiences with curiosity and an open mind.