What does it mean that the sky is red at birth?

It is pointed out that the sky is full of red light at birth, which is an absurd and unreal phenomenon and can also be understood as an abstract description by scholars.

When I was born, the sky was red. I remembered 18 poem, but as soon as I was born, it became popular all over the sky. No, it's not a poem at all. It seems to be a spell. This is like a feng shui phenomenon, which is superstitious and has no scientific basis.