I would like first to thank you giving your opinion about having a positive thinking. Positive thinking is how you choose to view things that are happening in your life and understanding that there are a good thing that happened without ignoring the pain and the darkest side of the event. For example you mentioned the story of a woman who get divorced, I am very sorry for her but she will have to continue with her life, so she will need to make some homeworks to make less mistakes and hoping a more suitable person will come to her life. There is a reason for everything,the life is continuing , the question is how do you take it, you can stay stuck complaining or you can believe what happened this is the best things that could happen, you had a lesson to learn, a mission to achieve, now it is time to go on. You mentioned in your post that people are expecting from the universe to something to happened like the "secret" or other books, when you are expecting from something you are doing actions towards it and seeing it happen everywhere, the answer is definitely not sitting and waiting for things to come without your involvement.