In plain words
But whatever Mīrā ate, whatever she drank, she first offered it to Kṛṣṇa. She went about her daily duties in the spirit of “Sarva karma bhagavatprītyarthaṃ”. So she set the bowl of milk her brother-in-law had handed her before the image of Kṛṣṇa, and with all her heart she said, ‘Kṛṣṇārpaṇaṃ’. That word did not come merely from her lips; it rose up from her heart. The moment He heard her prayer, Kṛṣṇa ate the poison Himself and turned the milk into divine amṛta. Taking that milk as Kṛṣṇa's prasāda, she drank it joyfully. Her brother-in-law waited with great eagerness and impatience, wondering at what minute the news of Mīrā's death would come. But what he expected was one thing, and what happened was another! When he learned that the poison mixed in the milk had had no effect on her at all, he was bitterly disappointed. He took the little milk left over after she had drunk, and had it tested. It turned out that there was no poison in it at all. Then where had the poison gone that he had mixed with his own hands? God had eaten it. For Mīrā had offered it up as being for the pleasure of God. Whatever is offered for the pleasure of God, God removes the impurity in it and makes it holy.
Some time later Emperor Akbar, the Mahārāṇā's greatest enemy, heard from this mouth and that of Mīrā's Bhakti and prapatti. A fierce longing arose in him to have her darśan, come what may. He told Bīrbal of this. He too said he would come along. One day the two of them put on disguises and set out for Mīrā's darśan. At that time Mīrā was in the Kṛṣṇa temple, singing, lost in Him in the rapture of Bhakti. Hearing her song, Akbar sank into an Ānanda not of this world and forgot himself. Until Bīrbal patted him on the back to rouse him, Akbar had no memory of who he was, where he was or what he was doing. At the very last, before leaving, Akbar took a necklace, went up to Mīrā and pleaded, “Mother! Kindly accept this necklace and put it round Kṛṣṇa's neck.” Then Mīrā: “I do not touch what belongs to others. If you wish to put this necklace round Kṛṣṇa's neck, go in yourself and put it there,” she said. But Akbar had not the courage to go near Kṛṣṇa.