A beanbag shapes itself to whoever sits in it, read as easygoing comfort and informality. Sinking too deep stands for a relaxed phase that is hard to climb out of.
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.