vana dekhi' - seeing the forest; bhrama haya - there is illusion; ei - this; vṛndāvana - Vṛndāvana forest; śaila dekhi' - seeing a hill; mane haya - considers; ei govardhana - this is Govardhana Hill.

When Śrī Caitanya Mahāprabhu passed through the Jhārikhaṇḍa forest, He took it for granted that it was Vṛndāvana. When He passed over the hills, He took it for granted that they were Govardhana.