If the veil were to disappear.

[Horuseus]

How would people respond?

The majority would probably die from the resulting psychological shock. There is a lot 'hidden' from the conscious mind for the benefit of the conscious mind, with any external data being given in a highly specialized and palatable manner. There is the assumption that the Veil is a sort of a Jail, which isn't the case at all. Imagine everything you know and deem to be true being torn down in a second, whilst simultaneously being bombarded with every single 'negative' belief held suddenly being made conscious.

Being 'passive love/light radiators' in essence relates to anchoring the natural higher vibration within physicality. In other words, place a higher vibration person next to an area of lower vibration (Or person) and that lower area will necessarily be 'forced' to resonate with that higher vibration (Sort of what happens with cymatic experiments, only the body is a more complex version), which allows for a higher spectrum of potential to be accessed. Have a group of high vibration individuals in an area and the resulting triangulation increases the frequency of the area within on a consistent basis, which benefits all.