Prayer is an important part of a person's relationship with Allah. It serves as a reminder of our dependence on Him, and as a means of seeking His help in times of sickness. Additionally, research has demonstrated the positive effects of faith and prayer on the recovery of the sick, with studies showing that prayer reduces symptoms and accelerates treatment. Allah is the One who hears and responds to the prayers of His people. The Qur'an provides examples of those who have prayed to Allah, such as Ayyub, Dhu'n-Nun and Zakariyya, who were all answered and saved from their grief. Person should not only pray for physical needs but also for guidance and spiritual growth, and Allah will respond to that prayer as well. The Qur'an provides assurance that Allah is always near and will answer the call of the caller if he/she calls upon Him.