The purpose of this book is to clarify the four stages of Nibbana in an easy-to-understand manner. To achieve this goal, the book explains the four stages of Nibbana in concise and accessible language, ensuring that each relevant topic is described clearly and briefly. The right understanding of a Stream-winner refers to comprehending the state of a Sotapanna in the mind. This book provides the subtle information you need to develop the right view of Stream-entry, including insights into the higher stages of Nibbana.