Mark (one) for life idiom
If something marks somebody for life, it has a considerable impact on somebody's mind or memory in a negative way for the remainder of their life.
Her father passed away when she was abroad. The thought of her father dying without being able to say goodbye to his daughter marked her for life.
I hope that the death of the dog will not mark him for life. They had always been together.
The abuse marked her for life and she no longer trusted any men.
The inexplicable or concealed place or state indicates the afterlife.
I'm very sorry for your dad. He's beyond the veil.