There is a story about a brahmana who was offering sweet rice to the Lord within his mind

SB 4.30.28, Purport: In this connection there is a story about a brāhmaṇa who was offering sweet rice to the Lord within his mind. The brāhmaṇa had no money nor any means of worshiping the Deity, but within his mind he arranged everything nicely. He had gold pots to bring water from the sacred rivers to wash the Deity, and he offered the Deity very sumptuous food, including sweet rice. Once, before he offered the sweet rice, he thought that it was too hot, and he thought, "Oh, let me test it. My, it is very hot." When he put his finger in the sweet rice to test it, his finger was burned and his meditation broken. Although he was offering food to the Lord within his mind, the Lord accepted it nonetheless. Consequently, the Lord in Vaikuṇṭha immediately sent a chariot to bring the brāhmaṇa back home, back to Godhead. Thus it is the duty of every sincere devotee to accept the arcā-vigraha at home or in the temple and worship the form of the Lord as advised in authorized scriptures and directed by the spiritual master.