Hare refers to “the pleasure potency of Krishna.” Due to their mystical devotion expressed in chanting and dancing, the Hare Krishnas can be compared to Sufi Muslims ("Whirling Dervishes") and some mystical expressions of Christianity that emphasize ecstatic experiences and mystical transcendence.
Mahaprabhu advocated a devotional method of faith in which adherents of Gaudiya Vaishnavism entered into a relationship with Krishna and expressed their adoration for Krishna through dancing and chanting.
For Hare Krishnas, God is everything and everything is God.
For the Christian, God is transcendent—He is above all that He created.
Eating meat is disallowed, as is dining in restaurants, due to the belief that food retains the consciousness of the cook—ingesting food prepared by an angry chef will make the eater angry.
In Hare Krishna, there is always a push to chant more, dance more, and work harder lest some bit of karmic debt is retained and cause one to fail to enter Krishna consciousness.