A lifeboat is traditionally read as the safety you reach for when a larger structure gives way. It can stand for a person, a plan or an inner resource you trust to carry you through a crisis.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.