Until the early 1950s, he had a negative view of organized religions, but he changed his mind that decade and began to discuss spiritual topics.
This magazine is mainly concerned with social, spiritual and cultural topics.
As of February 2008, more than 100 books with liturgical, spiritual, intellectual, academic topics had been published.
It is believed that he wrote as much as 3000 books on various social, historical, religious and spiritual topics.
Bill Keller later clarified his statements saying he was speaking on a spiritual topic, not a political one.
There aren't many artists whose conversation revolves so much around spiritual topics.
He had yet another overlapping career as an author of books on spiritual topics, including Eastern religions.
He eventually wrote over 40 books on a variety of medical and spiritual topics advocating a holistic approach to health.
Father Cantalamessa is the author of several books on theological and spiritual topics.
Besides these there were many books on spiritual topics.