It causes a certain degree of strangeness to Jennifer, the fact that christians wear some symbol as a crucifix or scapular on their necks as a form of faith. Jennifer may believe that having a religion or have faith in something, it is not necessary to show this with a symbol or a sign. The person might just believe it and that's it. Jennifer may not know what a cross represents for example, for Christians, and its importance. In the same way that she may not know, what symbol or sign can represent as importance and strength of faith for other religions. Her perspective is not strong, it is limitted. Or she may only believe that any belief is bigger and it is above any symbol, or object.
The answer to this question is Close
The upper part of the message is commonly used by the authors to give his/her thanks to the people that they felt have contributed greatly to their books.
The benefit for the readings should only be briefed slightly before the readers enter the actual content of the books.
In a text, when they ask you this, they are asking you to find what you learned of their personality trait/characteristic.
Theme is: life lesson, author's point of view, usually universal, or opinions.