A Pulsating Rhythm Is Present In The Song "Isaac" Which Is Regarded As The Only Song Close To A Ballad On The Album. However The Song Was Criticised Heavily By A Group Of Israeli Rabbis Who Commented That Madonna Was Committing A Blasphemy With Their Religion. They Said That The Song Was About Sixteenth Century Kabbalah Scholar Yitzhak Luria. In Reality The Song Was Named After The Featured Vocalist Yitzhak Sinwani Who Sang Portions Of The Yemenite Hebrew Poem Im Nin'alu In The Track. Initially Madonna Toyed With The Idea Of Calling The Song As "Fear Of Flying" Since The Idea Behind The Composition Was To Let Go. However At The End She Decided To Just Call It "Isaac" After The English Version Of Sinwani's Name.