In this writing, ‘Allamah Amini’s valuable Work, Siratina wa sunnatina, is introduced. This book has been put in writing to provide replies for three questions concerning Shi’is’ love for the Household (PBUT), the reason behind Shi’is mourning for Imam Husayn (PBUH) after long centuries, and the reason behind Shi’is respect for soil of his tomb. The author introduces the Persian translation of the book (Simay Shi’ah dar raftar-i payambar), and quotes some parts of the introduction of book in which it is explained that why this book has been written.