perfectly satisfying answers to questions about existence of man, God, Prophets, etc, not only in Islam, in almost all religions. great book.
When I read this book I was around 13 years old. The age when some sort of questions were making me confused. And I was also hearing questions which can make me close to the "unbelief". Hopefully, this book was given to me as a gift. And it opened me to a new world. Those questions from myself and my around were totally destroyed with this book.
Whenever some sort of questions came to mind; this book became my reference. Having this book in hand, don't get scared about the questions coming from the "unbelief" .
After reading this book, I read the "Criteria or Lights of the Way". And later I found myself waiting for the following series.