This is the 9017th most frequent Russian word.
рийна
"Рийна" is a proper noun, typically a female given name in Russian, derived from other cultures, like Finnish or Estonian.
Here, 'рийна' is used to describe the peacefulness and calm aura associated with natural surroundings.
Как же красива рийна природы в этом парке!
How beautiful is the tranquility of nature in this park!
In this case, 'рийна' expresses an emotional state of serenity and comfort.
Её улыбка передает рийну и тепло.
Her smile conveys serenity and warmth.
Here, 'рийна' is referring to an inner state of peace and spiritual tranquility.