Simran Jaap is one of the Three pillars of Sikhism, along with Kirat karo and Vaṇḍ chakko. Critical importance is given to the meditation in the Sri Guru Granth Sahib Ji as the way in which we can conquer ego, greed, attachment, anger and lust, together commonly called the Five Evils or Five Thieves and to bring peace into ones mind. Guru Ji says in the Sri Guru Granth Sahib Ji:

With my hands I do God’s work; with my tongue I sing God’s Glorious Praises.
With my feet, I walk on the Path of my Lord and Master. ((1))

It is a good time, when I remember Him in meditation.
Meditating on the Naam, the Name of the Lord, I cross over the terrifying world-ocean. ((1)(Pause))

With your eyes, behold the Blessed Vision of the Saints.
Record the Immortal Lord God within your mind. ((2))

Listen to the Kirtan of God’s Praises, at the Feet of the Holy.
Your fears of birth and death shall depart. ((3))

Enshrine the Lotus Feet of your Lord and Master within your heart.
Thus this human life, so difficult to obtain, shall be redeemed. ((4)(51)(120))

Bhai Daljeet Singh Damdami Taksaal – Sri Chaupai Sahib