put something in perspective
/ˌpʊt ˌsʌm.θɪŋ ɪn pəˈspek.tɪv/phrase
to compare something with something else so that you understand how important it really is
взглянуть на вещи трезво, расставить по местам
Скорее устойчивое сочетание, чем идиома.
“His illness put my small problems in perspective.”
“Travelling abroad helps put things in perspective.”
“Let me put this in perspective: it’s only one bad result.”