Pane Andov has a truly amazing presentation regarding this issue. In case you are not going to make it alive when the SHTF - when you realize your body/vehicle is dead - make a fast and strong flight towards the centre of the Milky Way to get in touch with the incoming cosmic wave/blue light. Dont stare at the mayhem below you. They are just waiting for disoriented souls to emerge and snatch them back.

When you get hit by the wave your 97% junk DNA get re-activated and they can jump you...