Yes, songs and scriptures can do it, and in my case it was a spiritual book called Autobiography of a Western Yogi, by Swami Kriyananda. I have to say, though, that I was full of fervour as a child, and I used to follow the Evangelists everywhere. I had that kind of hunger or yearning quite early.
It was not until 30, while in England, That I read the book and in a way, had my first mystical experience. So what brought me to God? well, I was chosen, but we can say that the book was an instrument. I found my Path about two weeks later. That was 33 years ago.
What reaffirms my Faith? Well, the spiritual life, or in this case, the life of prayer and meditation, does include mystical experiences. They come to all at God's choice hour, but the preparatory work of purity, service,gratitude ... does enlarge the Heart and makes it receptive to the finer, subtlier forces, descending from above.
One need not be despondent though. There is no had and fast rule, and one may not necessarily have spiritual experiences. But an intense Faith; an inner yearning or cry for the Divine is necessary. This in turn will widen the Heart and inspire Love and soulful service, which by their very nature will eventually lead to a sense of joy and peace. Hope this helps.