Answer:
Lindbergh book was a chance for women to think outside the box, in 1950.
She instigates the reader to confront the unknow, so that he or she can experience new things.
Explanation:
In her book Lindbergh talks about relationships, specially marriage, and how women could be more than just a housewife, and how would be healthier for married people to be able to develop their own individuality.
When she instigates the reader to confront the unknown, it is a powerful and positive thing to do, because when we explore new things our lives change. Our horizon expands and our minds become more inclined to accept new things.
The unknown might seen a little bit unconfortable in the beginning, but then, it shifts us. Narrowmind thoughts are no longer allowed and we are suddenly susceptible to new points of view. For instance, a very simple example is a place or city that you had never being before, in the first moment you might not like it, but as soon as you start exploring, knowing and learning about it, you will be surprised with the amount of great stuff you will experience.
The best conclusion is Lindbergh conclusion, "the unknown is not to be feared". She is right. We should be delighted by the unknown, the expectations, the mistery behind it. That is the beauty of life. That is what makes life spontaneous and amazing. We never have the same day twice.