Hari Nama Sankirtana, devotional chants is very typical to Indian spiritual tradition, practiced mainly in eastern India, West Bengal and Orissa, as a ceremony of rejoice, spiritual upliftment. Part of Bhakti Movement started by Sri Chaitanya Mahaprabhu. The Spiritual goals of the Bhakti movement is self-realization by complete devotion and love to the God. Bhakti movement teaches dwaita Brahman–God and the Self present two different forms divinity. Hari Nama Sankirtana is popularly known as Nama Yagyan, the ritual ideally takes place during the month, between November to April every year. It is popular among the Folks of rural India as Asta Prahari. It is named so because the ritual continues for Eight Prahara (Asta Prahara) without interruption, Prahara is a Sanskrit name for a unit of time, one Prahara is about 3 hours duration, so eight Prahara is 24 hours time. The Hari Nama Sankirtana performed continuously for 24 hours followed by Nagara Brahmana.
Nagar Brahman is the end part of the ceremony, when the Lord Sri Krishna, Chaitanya Maha Prabhu, Nitai-Gouranga, Guru Radharaman, and Pancha Tatva take a procession, (Ratha Yatra) amid Hari Nama Chants by devotees praising the lords presence amongst people, through the lanes of villages around and meeting members of each house hold.
Hari Nama unites dance with meditation. In Kali Yuga, Hari Naama is the greatest devotional chants (Maha Mantra) praising Hari. The most beautiful mode of spiritual engagement in India. The ritual rapidly depleting its ethos and values in India, gaining popularity in rest of the world.