What are the pillars of Islam brought by Prophet Muhammad?

The testimony of faith, which includes testifying the Creator's oneness and worshiping Him alone along with testifying that Muhammad is His slave and messenger.

Constant communication with the Lord of the worlds through prayer.

Strengthening man's will and self-control as well as enhancing his feelings of mercy and familiarity with others through fasting.

Paying a small percentage of one's savings to the poor and the needy through Zakah, which is an act of worship that helps man give prevalence to charity and giving over stinginess and miserliness.

Being fully devoted and dedicated to the Creator at a certain time and place through performing similar rituals by all believers during the Hajj (pilgrimage) journey to Makkah. It is a symbol of unity in turning to the Creator despite various human affiliations, cultures, languages, degrees, and colors.