Wax softens with warmth and hardens as it cools, so it is read as being impressionable and easily shaped. Dream books also link it to seals, memory and things made to last a while.
Does the traditional reading fit your dream, or did it mean something else to you?
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.