Saviour is the night when Allah is ready to forgive the sinners. It is the night that most Muslims expect a reversal in their fortunes in the following calendar.

In simple terms, it is a holiday observed by Muslims worldwide on the night between days 14 and 15 of Sha'ban, the eighth month of the Islamic Calendar. It is also known as Bara'at Night or Mid-Sha'ban, the night of records.

There are several reasons why the larger Muslim community celebrates this night. It is considered that this is the night when Allah writes the fortune of his people after taking all the misconducts and sins of the past into account. Muslims worldwide spend the entire night repenting and asking God for mercy. Everybody wants to give God a simple reason for him to be compassionate to them in the future.

The celebrations may also differ from place to place. Believers at the family level ask for forgiveness for the deceased, so they usually visit their graves, light candles, and lament with them. They pray for the dead, asking Allah to be benevolent to them wherever they are.

For example, in Iraq, people usually mark this day by distributing sweets to children. In Bangladesh, people typically fast during the day. Similarly, some people like to share Shab e Barat's wishes with their loved ones.

Shab e Barat is also a memorable day for Muslims because the birthday of Muhammad al-Mahdi, the twelfth Imam of Shia Muslims, is celebrated. He's considered to be the savior of the universe, and for this reason, people usually celebrate his birthday with a lot of joy and happiness.

People also believe that this is the day God saved Noah's ark, so Sunni Muslims celebrate the day to mark God's mercy to his people. It is a special night for blessings, so Muslims spend it in divine service.

There are five sacred nights of Muslims, according to Imam Nawawi, and one of them is the night of the 15th of Shaban. Besides spending the night praying and worshipping Allah, it is also recommended to fast the next day. Hazrat Ali reports that when this night comes, all Muslims should spend it praying, praising, and eventually fasting the next day.

People also come close as a family or congregation in Mosques to offer special prayers together. Others come together in their families to recite the Quran and pray together. Previously, Muslims also illuminated their houses and celebrated the night as a birthday for the Imam.

There needs to be a good argument on whether Shab e Barat should be celebrated. There's no clear guidance on how Shab e Barat's day and night should be celebrated. It is simple to choose what you should do on the night of Shab e Barat and decide how to seek forgiveness, blessings, and divine intervention for the coming year.

I hope you have understood why Muslims celebrate it and its importance to them.