In Christianity, fasting is often practiced during Lent, the 40-day period leading up to Easter. This fast is meant to mirror the 40 days that Jesus spent in the wilderness, where he fasted and prayed before beginning his ministry. During Lent, many Christians choose to give up meat, dairy, or other indulgences as a way to purify their bodies and focus on their relationship with God. Fasting is also common in Islam, where it is one of the five pillars of the faith. Muslims fast during the month of Ramadan, which lasts for 29 or 30 days depending on the lunar calendar. During Ramadan, Muslims abstain from food, drink, smoking, and sexual activity from sunrise to sunset.