Hip-hop mogul and bestselling author Russell Simmons introduced a new meditation iOS app called Meditation Made Simple as a follow-up to a book he released last year called “Success Through Stillness: Meditation Made Simple.”

Designed by Simmons, the app offers information about the benefits of meditation, information on how to meditate, and 10- and 20-minute guided meditation exercises. It also includes a vibration that can be used to calm the mind during meditation or before bed, according to the Huffington Post. Simmons learned about vibration mantras from his transcendental meditation teachers.

“The mantra has no meaning,” he told Huffington Post. “It’s just a vibration, and that really stuck with me as a tool. The mantra I give in the book and app is ‘rum,’ the sound of the calming vibration. It’s a simple vibration that you think, not say. You fasten your mind to it, and your mind may drift, but then you gently come back to it. The app is designed to remind you again and again to go back to the mantra.”

Simmons has shared how meditation changed his life in his books and interviews, including the cover story of Elevated Existence’s March 2011 issue, practicing for more than 18 years, and he even meditates with his children in the morning before they go to school.

“Being in the present moment is a simple, yet elusive idea,” he told Elevated Existence in the 2011 cover story. “People don’t understand that noise is the biggest distraction separating them from their goals. Being awake and being in the present is what allows people the freedom to attain their goals. That has to be step one before you start to chase the world. Go inside and then the world will come to you.”