A key element of Muslim life is the obligatory, ritual prayer. These prayers are performed five times a day, and are a direct link between the worshipper and God. This very personal relationship with the Creator allows one to fully depend, trust and love God; and to truly achieve inner peace and harmony, regardless of the trails one faces. Prophet Muhammad (peace be upon him) said: "Indeed, when one of you prays, he speaks privately with his Lord." Prayers are performed at dawn, mid-day, late-afternoon, sunset and nightfall; reminding one of God throughout the day. Regular prayer helps prevent destructive deeds and gives one the opportunity to seek God's pardon for any misgivings. The Prophet once asked his companions: "Do you think if there was a river by the door and one of you bathed in it five times a day; would there remain any dirt on him?" The Prophet's companions answered in the negative. The Prophet then said: "That is how it is with the five (daily) prayers; through them God washes away your sins." Friday is the day of congregation for Muslims. The mid-day prayer on Friday is different from all other prayers in that it includes a sermon. Prayer at other times are relatively simple, they include verses from the Qur'an and take only a few minutes to complete.