My favorite part of this book was really the little interludes between the pages of the story right after Astrid would send the love up through the clouds to the airplanes and the passengers on board. So very touching the thoughts she had, all the questions she posed to them, and in some weird way they heard her and it would change each life for the better.
As far as characters went, I loved Astrid the most. She seemed to have the most to lose in this story and also the most to gain. She finally laid it all out on the table while the whole time in the midst of her own turmoil she still sent love into the universe, never expecting anything back.
Be kind to others and also be more accepting of others, stop trying to makes changes that benefit nothing or that does not fit into your world.