Salah is Physical and Spiritual Purification

Salah is an act of worship that protects and cleanses a Muslim from being contaminated by spiritual impurities such as hatred, envy, indecency and evil. Almighty Allah (swt) explains this in the Qur'an as follows: “Recite, [O Muhammad!], what has been revealed to you of the Book and establish prayer.Indeed, prayer prohibits shamelessness and wrongdoing. The remembrance of Allah (through prayer) is greater.  And Allah knows that which you do.'' (Ankabut, 29/45) A Muslim who turns towards the Kaaba five times a day and connects with Allah (swt) sincerely and honestly will save himself from the  captivity of evil inspired into his own self. He will not fall into the humiliating states of the worldly life. Because of this special worship, he feels the strong connection with Allah (swt) five times a day and renews his faith. By strengthening his faith, he becomes spiritually stronger and spiritually nourished. 

Prophet Muhammad (saw) likens the person who performs salah to someone who washes himself five times a day in a river in front of his house. There will be no trace of material impurities left in this person, and no trace of sins will remain in the person who performs the salah. Therefore, performing salah has a dual effect by cleansing spiritual and material impurities. (Sahih al-Bukhari, Mawaqit, 6; Sahih Muslim, Masajid, 283)

Performed properly, salah matures a Muslim morally and makes him a virtuous individual. A believer, who consistently and consciously fulfills this duty of servitude in reverence, will have no trace of ungratefulness or stinginess. As a person with chastity and reliability who has a firm belief, internalizes virtues such as modesty and generosity, he becomes one of the favorite figures of the society and the enlightened representatives of Islam. 

Salah is a worship that psychologically relaxes people, who struggle to exist in the world, where everything loses its value rapidly, and who have difficulty in breathing among the world's preoccupations, and reveals the qualities that make them human.  As a matter of fact, Prophet Muhammad (saw), who is an example for us, used to take refuge in His Lord (swt), Who solved all problems and relieved sorrow and sadness, by performing salah when He faced a troubled and sad situation.(Abu Dawud, Tatawwu', 2) 

Salah provides physical purification from another aspect. As part of preparation for this worship, performing ablution, purifying the body and the place of prayer from impurities allows people to live in healthier conditions.