Penguins cannot fly but swim beautifully, so they are read as finding the element where you thrive. Huddling together through the polar winter, they also stand for community and endurance.
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.