some people believe there is such a thing as "non-being"
they imagine e.g. death has something to do with this
to these we have to say "non-being by its very definition doesn't exist"
ergo: "Being is all there is"
for some people this is an immediate "awakening" that kills whoever was there looking (in this case, at "non-being")
99% of problem is the one imagining it, the other 1% is also the one imagining it