TARAWIH AND ITIKAF in Ramadan Month

Muslims celebrate these prayers following the night prayer, or Salat to Isshá. They consist of prolonged prayers, of at least eight genuflections, or twelve, sixteen, or twenty, according to the practice of the Prophet, and are prayed before witr. The Prophet sometimes celebrated them alone, sometimes in congregation, but preferably alone, indicating that their practice may be individual, without imam, and that they are not obligatory. The Prophet (PSCÉ) said:
من قام رمضان إيمانا واحتسابا, غفر له ما تقدم من ذنبه
"Whoever prays devoutly in Ramadan will obtain the indulgence of sins."

Recall, on the other hand, the physical benefits involved in prolonged prayer after breaking the fast.

The Prophet received every night of Ramadan the Archangel Gabriel, who explained to him the Qur'an. The last ten days were gathered in the mosque to dedicate to worship and live "the night of the decree" in total obedience to God.

For, as the Prophet (PSC) taught, he who watches over prayer and contemplation on the night of the decree reaches indulgence and divine grace, and adds:
تحروا ليلة القدر في الوتر, من العشر الأواخر من رمضان
"Seek the night of the decree on the last ten odd days of Ramadan."

The Ítikaf : consists of the believer retiring to the mosque several days, still eating and sleeping in it, and without leaving but for the necessary, dedicated to worship and submission to God.