Rabbi Aryeh Kaplan was a Jewish author, writing over 50 books, some of them related to Kabbalah and Jewish Meditation. He passed away suddenly at the relatively young age of 48, leaving a wife and nine children. His books have brought many unaffiliated Jews closer to Judaism and spirituality, at the same time also serving as a springboard for members of the religious community to a path of Kabbalah, Breslov and Chasidus.

Rabbi Aryeh Kaplan is buried in Har Hazeisim.

The yortzeit of Rabbi Aryeh Kaplan is on the 14th of Shevat. Some of his students have a custom of visiting his kever on his yortzite.