SUMMARY
On his way to happiness, man always needs guidance to illuminate his path; In the Shiite doctrine after the Messenger of God (PBUH), the imams (AS) are the guide of humanity to goodness and happiness with their words and deeds. The words of Imam Ali (AS) in Nahj al-Balaghah are a clear guide in advancing the life of contemporary man towards goodness and happiness. Since Nahj al-Balaghah dates back to past centuries, one of the presuppositions of modern man regarding the enlightening concepts of Nahj al-Balaghah is that due to the passage of time, this collection cannot be the guide to the path of happiness in modern life. The author seeks to explain the principles of communication of the concepts of Nahj al-Balaghah with contemporary human life and to discuss its necessity. The present study, which has been compiled by documentary-analytical method, has categorized these features in the following titles: Reliance of the teachings of Nahj al-Balaghah on the Qur’an; The use of general concepts unlimited to place and time; Comprehensiveness of Nahj al-Balaghah; Guidance of the words of Imam Ali (AS); The evolution process of translation, explanation and interpretation of Nahj al-Balaghah; Adaptation of the teachings and concepts of Nahj al-Balaghah to human nature; The beauty and literary value of Nahj al-Balaghah and the content depth of Nahj al-Balaghah.