In spiritual terms, any barrier suggests a division between two states, e.g. the spiritual and the mundane, or the physical and emotional. The implication is that it has been placed there for a purpose, to alert us to a duality. As a barrier signifies an obstacle to be overcome, or a difficulty to be recognized, the nature of the barrier and our reactions will clarify any action that needs to be taken. In our most vulnerable emotional states we may need some sort of buffer between us and the rest of the world. If the barrier is a safety barrier we perhaps need to stop and consider our actions. To run into a buffer may indicate the need for caution. It suggests a parameter beyond which there is danger.