This is the 5096th most frequent Turkish word.
hayatından
"From his/her/its life" or "of his/her/its life."
Here, 'hayatından' (from his life) indicates the source or context from which the habit of reading books exists, emphasizing how integral it is to their existence.
Kitap okumak onun hayatından eksik olmayan bir alışkanlıktır.
Reading books is a habit that is never missing from his life.
Here, 'hayatından' (from her life) functions to describe the realm of her existence where the concept of love resides, exemplifying its indispensability.
Onun hayatından sevgiyi çıkartamazsınız.
You cannot remove love from her life.
In this sentence, 'hayatından' (in his life) describes the domain or scope of his existence that is notably influenced by the activity of traveling.