Zalman Schachter-Shalomi — “Reb Zalman” to his many friends, students and disciples — is considered the guiding light of Judaism’s Renewal movement. Recently he was in Los Angeles for Makom Ohr Shalom’s Rosh Hashanah services. Because he was so busy during the visit, he agreed to an interview via Skype after returning to his home in Boulder, Colo., where he lives with his wife Eve and their two cats, Mazel and Brakhah. Now 85, Zalman said he was “tired” from his holiday traveling, though he appeared as vital as ever. Bearded, eyes twinkling, animated, wearing suspenders and a knitted kippah, he chatted about topics close to his heart: Eco-kashrut, aging and the future of religion.