I was fighting aliens that couldn’t die, on boats on a series of canals.
This dream may have symbolic meanings related to your waking life experiences. Fighting aliens that couldn't die could represent a struggle or challenge that you feel is beyond your control or seems insurmountable. The boats on canals could be related to your journey through life and the path you're taking. It's possible that this dream is telling you that you're facing obstacles in your life that feel like they will never be resolved. Despite this, you're still trying your best to fight and overcome the challenges you're facing. This dream could be encouraging you to persevere and keep pushing forward, even when things are tough.