telling someone "take a step back, you're having a meltdown" is not gaslighting.
if you're right about it, then you helped someone through a meltdown. if you're wrong about it, they can tell you something similar, they can tell you their experience. then you can work out together why your interpretations didn't match.
(ofc, if someone does this, they could just be trying to control you, in which case it is gaslighting. different situations tho. gaslighting doesn't take feedback into account.)
A home for those who're trying to be better people- hence, afterlife.