paṭhati vimala cetā mṛṣṭa rādhāṣṭakaṁ yaḥ
parihṛta nikhilāśā santatiḥ kātaraḥ san
paśupapati kumāraḥ kāmam āmoditas taṁ
nija jana gaṇa madhye rādhikāyās tanoti

Anyone who eagerly reads this pure Rādhikāṣṭakam with a spotless heart, having given up all material desires, will delight Śrī Kṛṣṇa, the prince of cowherders, who will give that person a place among Śrī Rādhikā’s own (girlfriends or maidservants).

Stavāmṛta Kaṇā Vyākhyā:

In this verse, Śrī Raghunātha offers his benediction to the reciters of his Rādhikāṣṭakam.

First of all, he says how this Rādhāṣṭakam must be recited:
It must be eagerly recited with a pure heart, giving up the whole chain-reaction of material desires.
Here nikhilāśā means all desires for sense gratification.
Wordly people have been cherishing this chain-reaction of material desires within the heart from beginningless time.
Each material desire is again the father of so many other desires, and thus the entire succession of material desires covers over their hearts.
No matter how much good advice a human being receives from the saints, the scriptures and the Guru, still there is no mitigation of these sensual desires.
Rather, his material desires increase by the day, awakening attachment to passion and repulsion that spreads a deep darkness everywhere.
In the intoxication of this trivial sense enjoyment, which is full of terrible miseries like birth, death, old age, disease, sorrow and the threefold material afflictions, human beings have given a place in the heart to this chain-reaction of desire from beginningless time.

The all-benevolent Upaniṣads have shown light to the human race so that they can become free from this deep darkness: yo vai bhūmā tat sukhaṁ nālpe sukham asti, –
“In this trivial thing (sense enjoyment) there is no happiness, and maintaining these desires is the cause of misery. The real joy lies in bhūmā, or the centre of all transcendental bliss, God”.

Being turned away from this centre, the human beings have begun to desire this most insignificant sensual happiness and are now wandering around on the high waves of birth, old age and death in the greatly terrifying ocean of material existence.
By developing a desire to worship the Lord through the shelter of saints and the Guru, the darkness of this chain-reaction of material desires can be dispelled.

As the daylight dispells the night, the heart, which is polluted by māyā, can become purified and the eagerness to attain the Lord can be awakened.

Amongst all the desires for bhajana, the desire for bhajana which is revealed in this Śrī Rādhikāṣṭaka is the summit of all aspirations for bhajana – the desire to worship the Yugala Kiśora, which is the unprecedented merciful gift of Śrī Caitanya Mahāprabhu, which is rarely attained even by Lord Brahmā, Lord Śiva and Lord Śeṣa.
Therefore this Rādhikāṣṭaka is most pure.
Vrajendranandana Śrī Kṛṣṇa will be most satisfied with those who recite this Rādhikāṣṭaka (this includes hearing and remembering) and will make him a maidservant of Śrī Rādhikā, blessing him forever by giving him rādhā-dāsyam, the crown-jewel of all human pursuits.
This siddha vāṇī (perfect word) is the merciful blessing of Śrīpāda Raghunātha, the Rādhākuṇḍa-Ṛṣi who is the dearmost devotee of Śrī-Śrī Rādhākuṇḍāśrayī Śrī-Śrī Rādhā-Mādhava, to the people of the world.
Therefore each devotee should make this Śrī Rādhikāṣṭaka, composed by Śrīla Gosvāmīpāda, a kaṇṭha-hāra (necklace, meaning: it should be memorized) and always recite it.

yei jana sarva āśā kori parityāge; śuddha citte nirantara kātara svabhāve
pariśuddha rādhāṣṭaka nitya kore pāṭha; śrī govinda hṛṣṭa hoiyā dekhāya prema nāṭa
ananta bhuvana mājhe sei bhāgyavān; rādhikāra gaṇe tāra likhe deya nāma
‘rādhāṣṭaka’ anuvāda bhajana sampad; gāna kore aśru-jale nitya ‘haripada’

“Śrī Govinda will joyfully show the market of prema to anyone who gives up all material desires and always anxiously recites this Rādhāṣṭaka with a pure heart. In all the innumerable universes he whose name has been written down in Rādhikā’s group is fortunate. With tear-filled eyes Haripada Śila always sings and translates this treasure of worship named ‘Rādhāṣṭaka’.”