CC Madhya 4.198

ei śloka paḍite prabhu ha-ilā mūrcchite
premete vivaśa hañā paḍila bhūmite
Word for word: 
ei śloka — this verse; paḍite — reciting; prabhu — Lord Śrī Caitanya Mahāprabhu; ha-ilā — became; mūrcchite — unconscious; premete — in ecstatic love; vivaśa — uncontrolled; hañā — becoming; paḍila — fell down; bhūmite — on the ground.
Translation: 
When Śrī Caitanya Mahāprabhu recited this verse, He immediately fell to the ground unconscious. He was overwhelmed and had no control over Himself.