The Golden Keys are a series of booklets which contain questions from many people and answers by Maitreya. Each of these questions and answers are like a Golden Key that opens a door to a greater understanding of Him and His teachings. This is the sixth in the series.
Golden Keys 6 sections: Introduction, The Reminder
The Golden Keys series is also fully available online: http://www.maitreya.org/english/WORDKEYS.HTM