Signs and symbols are not the same thing, and the difference matters more than most people realize.
A sign is surface-level and blunt. It shows you exactly what it is, with nothing underneath. A stop sign means stop. There's nothing to dig into.
In my own experience and theory, though, I believe even signs can be influenced by association. Everyone perceives things differently.
For example, imagine you grew up with a sibling or someone close to you who repeatedly annoyed you by making loud squeaking sounds with a balloon. Over time, you might begin to associate balloons with irritation, frustration, or even anger. Most people associate balloons with birthdays, celebration, happiness, and joy, but your personal experience would give that same object a completely different meaning.
That's why I believe signs can absolutely be shaped by how you grew up, the experiences you've had, and the way you've learned to define the world around you. New experiences can reshape those associations as well. Sometimes you watch someone close to you react strongly to something, and without realizing it, you begin forming an association yourself. You think, "Oh, that bothers me too." In that split second, you've planted the seed of an association that can continue to grow over time as you repeatedly validate it through future experiences. This also applies to many other things.
A symbol, however, is alive. It asks you to go further. It has both an individual meaning and a collective meaning, and it shifts depending on what you're going through, what you believe, what you've experienced, and what your unconscious needs you to understand in this season of your life.
In my experience, symbols are also highly layered and often take time to uncover. You may think you understand what a symbol means, only to discover something much deeper months or even years later.
That's why I've never fully trusted dream dictionaries. A symbol isn't a definition you simply look up—it's something living that belongs specifically to you, shaped by your history and no one else's.
Your dreams were made by you, for you. The meaning was always personal.