The safety pin represents a metaphor for connection and protection. When the pin closes, the connections become longer, which reflects the strengthening of relationships. However, if the connection is broken, the pin can prick. Chains of pins symbolize communication that must be closed for effective work. Closed connections can be useful, but open ones can cause pain.
Like a pin connecting to another, we make connections, sometimes ignoring their quality, rather considering the quantity (for example, followers on social media). The value and depth of communication is lost in the ‘web’ of contacts around it.