A prayer of stillness
Hesychasm developed particularly among Orthodox Christians, including monks who sought God in places of solitude. Yet its central desire is familiar to Christians everywhere: to become quiet before God, bring scattered thoughts to him, and grow in loving attention to his presence.
The Bible does not use the word Hesychasm, but it does call God's people to stillness and trust. Jesus himself withdrew from public activity to pray (Luke 5:16), and Paul encouraged believers to bring every concern to God with thanksgiving (Philippians 4:6). Quiet prayer is not an escape from ordinary life. It can help a person meet God honestly within it.
Be still, and know that I am God: I will be exalted among the heathen, I will be exalted in the earth.
The Jesus Prayer
The best-known Hesychast prayer is often expressed as: Lord Jesus Christ, Son of God, have mercy on me, a sinner. Christians may use it slowly and repeatedly, sometimes alongside calm breathing, to return their attention to Christ. Its wording brings together Peter's confession about Jesus and the tax collector's plea for God's mercy (Matthew 16:16; Luke 18:13).
Repeating a short prayer is not meant to be magic or mindless. Jesus warned against empty, showy repetition, not against returning sincerely to God with the same words (Matthew 6:7). As he faced the cross, he prayed again using the same words (Matthew 26:44). The question is whether the words are being used to control God, or as a humble way of seeking him.
What Hesychasm seeks
Hesychasm seeks a heart made watchful, peaceful, and open to God. Practitioners often speak of guarding the mind, noticing distracting or harmful thoughts without feeding them, then gently returning to prayer. That has a biblical echo in Paul's call to dwell on what is true, pure, and worthy of praise (Philippians 4:8).
Its deeper focus is communion with God through Christ, not simply feeling calm. Christians are saved by God's grace, received through faith, not by mastering a prayer method (Ephesians 2:8-9). A quiet practice may be helpful, but the mercy asked for in prayer is God's gift.
Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God. And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus.
Can any Christian practise it?
Many Christians find that a simple repeated prayer helps when words are hard to find. Others prefer spontaneous prayer, praying through a psalm, or speaking to God in their own words. Faithful Christians differ about some Hesychast teachings and practices, especially the ways they have been explained in Eastern Orthodox tradition.
You do not need a special technique to come to God. You might sit quietly for a few minutes and pray the Jesus Prayer slowly, or simply ask the Lord for mercy. Let Scripture shape your prayer, and keep your confidence in Jesus rather than in your ability to concentrate. He welcomes those who come to him (John 6:37).