Stand/turn something on its head phrase
To change something such as an argument, fact, theory, etc. completely, and such that makes everyone thinks about it in a totally different way.
This political system has turned the notion of equality and liberty on its head and sparked a new wave of unrest.
The most recent discovery has stood our understanding of genetics on its head.
These photographs aim at standing conventional idea of beauty on its head.
The verb "stand/turn" must be conjugated according to its tense.
The origin of this phrase is not clear.
The inexplicable or concealed place or state indicates the afterlife.
I'm very sorry for your dad. He's beyond the veil.