You can take away my wife, you can take away my children, you can strip me of my clothes and my freedom, but there is one thing no person can ever take away from me - and that is my freedom to choose how I will react to what happens to me!
Challenging the meaning of life is the truest expression of the state of being human.
Consider a movie: it consists of thousands upon thousands of individual pictures, and each of them makes sense and carries a meaning, yet the meaning of the whole film cannot be seen before its last sequence is shown. However, we cannot understand the whole film without having first understood each of its components, each of the individual pictures. Isn't it the same with life? Doesn't the final meaning of life, too, reveal itself, it at all, only at its end, on the verge of death?