This is the 5799th most frequent Russian word.
пузыре
The word "пузыре" is the prepositional case of "пузырь," which means "bubble" or "blister" in English.
Here, 'пузыре' is used in the instrumental case of the noun 'пузырь', meaning 'bubble'. It describes the location where the fish was observed.
Я увидел рыбу в пузыре воздуха.
I saw a fish in a bubble of air.
In this sentence, 'пузыре' is used metaphorically to describe a state or sphere, specifically referring to 'comfort zone' or a personal space.
Я оказался в своём пузыре комфорта.
I found myself in my bubble of comfort.
Here, 'пузыре' refers to a bubble again but implies directly being inside another pre-existing bubble-like formation or state.