"Some people seek a philosophical closeness with God.
Others are led to it by the events of their lives, by delving into the mysteries of nature, or by examining Jewish history.
Another way of nurturing the desire for closeness with God is by looking into oneself: 'From my flesh shall I see God' (Job19:26).
It is the understanding that God is the source and essence of not only the entire universe, but also of my own private soul."
From the essay "The Significance of the Giving of the Torah," by Rabbi Adin Steinsaltz