Isolation in Utah had allowed Mormons to create a culture of their own. As the faith spread around the world, many of its more distinctive practices followed. Mormon converts are urged to undergo lifestyle changes, repent of sins, and adopt sometimes atypical standards of conduct. Practices common to Mormons include studying scriptures, praying daily, fasting regularly, attending Sunday worship services, participating in church programs and activities on weekdays, and refraining from work on Sundays when possible. The most important part of the church services is considered to be the Lord's Supper (commonly called sacrament), in which church members renew covenants made at baptism. Mormons also emphasize standards they believe were taught by Jesus Christ, including personal honesty, integrity, obedience to law, chastity outside marriage and fidelity within marriage.