sift through (someone's) thoughts

Translations
разобраться в (чьих-то) мыслях
She needed to sift through her thoughts before making a decision.
Ей нужно было разобраться в своих мыслях, прежде чем принять решение.
Definitions
To carefully examine or consider someone's thoughts, often in order to find something specific, gain understanding, or make sense of their ideas and feelings.
Words
sift

verb
перебирать
through

preposition
через
someone's

pronoun
чьи-то
thoughts

noun
мысли