Finding numbers in my abstract painting about grief

One morning, I found myself staring at the Heartache painting, as I often do. It's hung in the kitchen, a high traffic spot in my house. I feel the memory of the rush of emotions each time I see it.

This time however, I picked up on something different about the painting. I noticed there was a number 4 in among the random splotches of paint! A very clear number 4 at that. It definitely wasn't intentional on my part. It was purely random from the paint strokes that happened during the unconscious painting of grief.

Not far below the first “4” discovery, I found a second number 4 in my paintjng. What did this mean? I didn't consciously put it there, and my son wasn't writing numbers yet.