A ring-shaped torus lets energy flow out and back through its own centre. Modern symbolic readings take it as a self-sustaining cycle — giving and receiving that keep each other going.
Where in your waking life have you met something like this lately?
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.