The tree of knowledge stands for awareness that cannot be undone — understanding that changes how you see things. Dream books read it as curiosity, temptation and the price of insight.
Has this come up in your dreams before? What was going on in your life then?
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.