"everything happens for a reason..."

"everything happens for a reason..."
so it does
or so it may
it could be
that we simply cannot say
"everything happens..."
that is for certain
but "for a reason?"
feels like a curtain
cannot be turned
cannot be opened
what is behind
perhaps another question
"everything happens for a reason"
an excuse
for what we know not
behind the curtain
what "reason?"
if we do not know,
how can we assume it
reasonable?
maybe we should shorten
our favorite expression
"everything happens..."