No significant family upbringing..
One never knows what seemingly insignificant,,
forgotten event or words can have a lifelong impact.
But of course, I will agree that you'd be one of a rare
few who were actual atheists and then went over to the dark side.
The biggest impact I can think of from my parents is when my mother read to my brother and I Tolkien's
The Hobbit. Then I tried, as a teenager to read
The Lord of the Rings until I finally completed it. I was hooked on myth after that.
When I went to college I went to a University with Catholic affiliations. They required three courses in religion...that was how I was introduced to Christianity in any serious way. My teacher referred me to Kazantzakis'
The Last Temptation of Christ which I read with great appreciation. I was happy when the movie came out soon thereafter. I went to the theater, passed the picket lines, three times!
While in college I studied for a Math and Physics degree based in no small part by my inspiration from having watched the
Cosmos series by Carl Sagan on PBS when it originally aired (which, to my parents' credit they promoted to me who would otherwise have been oblivious as to that series' existence). Not too many years ago I re-read the book of the series.
I also think that my study of Carl Jung and Joseph Campbell were instrumental as was Bill Moyer's series on Campbell and later Genesis.
I entered my faith as a Christian with my eyes wide open as to its psychological and mythological roots. I read Douglas Hofstadter, Daniel Dennett, Steven Hawking and I study the NIV on Bible Hub via online forum posts.
When I read Genesis I see the dream, psychological, literary, mythic influences and I also see a great work of spiritual literature. When I do dream interpretations I see the basis of myth and the common spiritual motifs that the human brain structures underneath the vicissitudes of our daily and lifetime experiences.