Allameh Majlisi was a prominent Persian Shia scholar and theologian born in 1627 in Isfahan, Iran. He is best known for his extensive works on Islamic philosophy, theology, and jurisprudence. His most significant contribution is the compilation of Bihar al-Anwar, a comprehensive collection of hadiths that covers various aspects of Islamic teachings. Majlisi played a crucial role in the development of Shia thought during the Safavid era. He served as a leading cleric and was influential in promoting the Twelfth Imam belief among Shia Muslims. His writings continue to be studied and respected in Shia scholarship today.