This is the 1907th most frequent Turkish word.
insana
"To the human" or "to the person".
Here, 'insana' indicates a general recipient, emphasizing the effect on people in general.
Arkadaşın selamı insana moral verir.
A friend's greetings give morale to a person.
Here, 'insana' is used again in a universal sense, referring to an individual experiencing and learning from difficulties.
Zor zamanlar insana çok şey öğretir.
Hard times teach a person many things.
Here, 'insana' signifies the representatives of humans in general who may obtain insights from the book.