Romans 1:1
“Paul, a servant of Jesus Christ, called to be an apostle, separated unto the gospel of God,”
Many people will separate themselves from many things because of something they want to do. An athlete will stop eating certain foods because they want to perform at their peak ability. A young couple will separate from friends because they love each other and want to get married. In both of these instances, the purpose of separating was so that they could do something better.