prāpyam ekam ivoditam
tad brahma-kṛṣṇayor aikyāt
kiraṇārkopamā-juṣoḥ
yat-that; arīṇām-of the enemies of the Supreme Personality of Godhead; priyāṇām-of the devotees, who are very dear to the Supreme Personality of Godhead; ca-and; prāpyam-destination; ekam-one only; iva-thus; uditam-said; tat-that; brahma-of impersonal Brahman; kṛṣṇayoḥ-and of Kṛṣṇa, the Supreme Personality of Godhead; aikyāt-due to the oneness; kiraṇa-the sunshine; arka-and the sun; upamā-the comparison; juṣoḥ-which is understood by.
"Where it has been stated that the Lord's enemies and devotees attain the same destination, this refers to the ultimate oneness of Brahman and Lord Kṛṣṇa. This may be understood by the example of the sun and the sunshine, in which Brahman is like the sunshine and Kṛṣṇa Himself is like the sun."
This verse is from the Bhakti-rasāmṛta-sindhu (1.2.278) of Śrīla Rūpa Gosvāmī, who further discusses this same topic in his Laghu-bhāgavatāmṛta (Pūrva 5.41). There he refers to the Viṣṇu Purāṇa (4.15.1), where Maitreya Muni asked Parāśara, in regard to Jaya and Vijaya, how it was that Hiraṇyakaśipu next became Rāvaṇa and enjoyed more material happiness than the demigods but did not attain salvation, although when he became Śiśupāla, quarreled with Kṛṣṇa and was killed, he attained salvation and merged into the body of Lord Kṛṣṇa. Parāśara replied that Hiraṇyakaśipu failed to recognize Lord Nṛsiṁhadeva as Lord Viṣṇu. He thought that Nṛsiṁhadeva was some living entity who had acquired such opulence by various pious activities. Being overcome by the mode of passion, he considered Lord Nṛsiṁhadeva an ordinary living entity, not understanding His form. Nevertheless, because Hiraṇyakaśipu was killed by the hands of Lord Nṛsiṁhadeva, in his next life he became Rāvaṇa and had proprietorship of unlimited opulence. As Rāvaṇa, with unlimited material enjoyment, he could not accept Lord Rāma as the Personality of Godhead. Therefore even though he was killed by Rāma, he did not attain sāyujya, or oneness with the body of the Lord. In his Rāvaṇa body he was too much attracted to Rāma's wife, Jānakī, and because of that attraction he was able to see Lord Rāma. But instead of accepting Lord Rāma as an incarnation of Viṣṇu, Rāvaṇa thought Him an ordinary living being. When killed by the hands of Rāma, therefore, he got the privilege of taking birth as Śiśupāla, who had such immense opulence that he could think himself a competitor to Kṛṣṇa. Although Śiśupāla was always envious of Kṛṣṇa, he frequently uttered the name of Kṛṣṇa and always thought of the beautiful features of Kṛṣṇa. Thus by constantly thinking and chanting of Kṛṣṇa, even unfavorably, he was cleansed of the contamination of his sinful activities. When Śiśupāla was killed by the Sudarśana cakra of Kṛṣṇa as an enemy, his constant remembrance of Kṛṣṇa dissolved the reactions of his vices, and he attained salvation by becoming one with the body of the Lord.