Salah is the second Pillar of Islam which means prayers five times per day,

Salah – Performing Prayers
Salah (Arabic: صلاة, Qur’anic Arabic: صلوة, pl. ṣalawah) (also munz in Pashto and namāz نماز in Persian, Bengali, Urdu and Turkish) is the ritual prayer practiced by Muslims in supplication to Allah, God. Salah, or Salah, is performed five times day:
1.Sunrise (Fajr)
2.Noon (Zohr)
3.Afternoon/Evening (Asr)
4.Sunset (Maghrib)
5.Nightfall (Isha’a).

Salah is obligoratory for all Muslims once they have reached puberty.
“As-Salah” is one of the Five Pillars of Islam in Sunni Islam and one of the ten Practices of the Religion in Shia Islam.
In central and South Asian languages such as Persian, Urdu, Hindi, Bengali, Albanian language, South Slavic languages such as the Bosnian language, Našinski, Macedonian language and Turkic languages it is called namāz (نماز) from the Indo-European root meaning ‘to bow or prostrate’.
The person performing As-Salah is a musallī (مصلى), while the traditional prayer mat on which prayer is performed is a musalla.

The Purpose of Salah (Prayers)
The purpose of salah is primarily to act as an individual’s communication with God.
It enables one to stand in front of God, thank and praise Him, and ask for Him to show one the “right path” (as mentioned in surah al-Fatihah which is recited in every prayer).
In addition, the daily ritual prayers serve as a constant reminder to Muslims that they should be grateful for God’s blessings. It ensures that every Muslim prioritises Islam over all other concerns, thereby revolving their life around God and submitting to His will. Prayer also serves as a formal method of remembering God.
“The true believers are those who feel a fear in their hearts (of the consequences of violating the commands of Allah) when Allah is mentioned. And when His Revelations are recited to them, they find their faith strengthened. They do their best and then put their trust in their Lord.”
Quran 8:2

“To those whose hearts when Allah is mentioned, are filled with fear, who show patient perseverance over their afflictions, keep up regular prayer, and spend (in charity) out of what We have bestowed upon them.”
Quran 22:35