Kabbalah. Why evil wins, but good. And then what is the meaning of life?

This book is addressed to those who suffer and ask questions, for which it is this suffering and why it is he who suffers.
She is about good and evil, about love and hatred and their eternal struggle.
We very often We become witnesses of how evil is stronger than good, and hatred wins love. The book tells why this is happening, why good cannot defeat evil.
Is it possible for people to live without troubles? And if possible, how to achieve this?
or trouble, like a solar eclipse, should happen at a certain time?
Does God exist? And if it exists, then who is he. Many say and write that God is absolute love, but then why is there so much evil in the world, why do we regularly suffer disaster, and our children cry so often from grief? How can he allow this?
All these issues are lit in this book. To deal with them, the science of Kabbalah will help us to find answers to many of them