She was raised as a Lutheran, received a good education and grew up to be strictly religious.

[1] In 1658, Anna Sophia published a book of spiritual meditations called Der treue Seelenfreund Christus Jesus.

Anna Sophia justified her work, as was standard in the 17th century, by saying that it was God's order.

Being an abbess and a Lutheran at the same time, Anna Sophia defended her choice to remain unmarried in her book.

[3] Anna Sophia had a lapse of faith after her elder sister Landgravine Elisabeth Amalie of Hesse-Darmstadt converted to Roman Catholicism.