In executing devotional service, one has to see every living entity equally, without enmity towards anyone yet without intimate connections with anyone. One has to observe celibacy, be grave and execute his eternal activities, offering the results to the Supreme Personality of Godhead.
A devotee of the Supreme Personality of Godhead who seriously engages in devotional service is equal to all living entities. There are various species of living entities, but a devotee does not see the outward covering; he sees the inner soul inhabiting the body. Because each and every soul is part and parcel of the Supreme Personality of Godhead, he does not see any difference. That is the vision of a learned devotee. As explained in Bhagavad-gītā, a devotee or a learned sage does not see any difference between a learned brāhmaṇa, a dog, an elephant or a cow because he knows that the body is the outer covering only and that the soul is actually part and parcel of the Supreme Lord. A devotee has no enmity towards any living entity, but that does not mean that he mixes with everyone. That is prohibited. Aprasaṅgataḥ means "not to be in intimate touch with everyone." A devotee is concerned with his execution of devotional service, and he should therefore mix with devotees only, in order to advance his objective. He has no business mixing with others, for although he does not see anyone as his enemy, his dealings are only with persons who engage in devotional service.

A devotee should observe the vow of celibacy. Celibacy does not necessitate that one be absolutely free from sex life; satisfaction with one's wife is permitted also under the vow of celibacy. The best policy is to avoid sex life altogether. That is preferable. Otherwise, a devotee can get married under religious principles and live peacefully with a wife.

A devotee should not speak needlessly. A serious devotee has no time to speak of nonsense. He is always busy in Kṛṣṇa consciousness. Whenever he speaks, he speaks about Kṛṣṇa. Mauna means "silence." Silence does not mean that one should not speak at all, but that he should not speak of nonsense. He should be very enthusiastic in speaking about Kṛṣṇa. Another important item described here is sva-dharmeṇa, or being exclusively occupied in one's eternal occupation, which is to act as the eternal servitor of the Lord, or to act in Kṛṣṇa consciousness. The next word, balīyasā, means "offering the results of all activities to the Supreme Personality of Godhead." A devotee does not act on his personal account for sense gratification. Whatever he earns, whatever he eats and whatever he does, he offers for the satisfaction of the Supreme Personality of Godhead.

(Srimad Bhagavatam------3:27:7------translation and purport).

The acts of yogamāyā make it possible for the Lord and the gopīs, in loving ecstasy, to sometimes meet and sometimes separate. These transcendental loving affairs of the Lord are unimaginable to empiricists involved in the impersonal feature of the Absolute Truth. Therefore the Lord Himself appears before the mundaners to bestow upon them the highest form of spiritual realization and also personally relish its essence. The Lord is so merciful that He Himself descends to take the fallen souls back home to the kingdom of Godhead, where the erotic principles of Godhead are eternally relished in their real form, distinct from the perverted sexual love so much adored and indulged in by the fallen souls in their diseased condition. The reason the Lord displays the rāsa-līlā is essentially to induce all the fallen souls to give up their diseased morality and religiosity, and to attract them to the kingdom of God to enjoy the reality. A person who actually understands what the rāsa-līlā is will certainly hate to indulge in mundane sex life. For the realized soul, hearing the Lord's rāsa-līlā through the proper channel will result in complete abstinence from material sexual pleasure.

(Sri Caitanya Caritamrta------1:4:30------purport).

Beginning from Lord Brahmā down to the insignificant ant, everyone, without exception, is attracted by the illusory energy of the Supreme Personality of Godhead. The demigods, human beings, animals, birds, beasts, trees and plants are all attracted by sexual desire. That is the illusion of māyā. Everyone, whether man or woman, thinks that he is the enjoyer of the illusory energy. In this way, everyone is captivated and engaged in material activities. However, because Haridāsa Ṭhākura was always thinking of the Supreme Personality of Godhead and was always busy satisfying the senses of the Lord, this process alone saved him from the captivation of māyā. This is practical proof of the strength of devotional service. Because of his full engagement in the service of the Lord, he could not be induced to enjoy māyā. The verdict of the śāstras is that a pure Vaiṣṇava, or devotee of the Lord, never thinks of enjoying the material world, which culminates in sex life. He never thinks himself an enjoyer; instead, he always wants to be enjoyed by the Supreme Personality of Godhead. Therefore the conclusion is that the Supreme Personality of Godhead is eternal, transcendental, beyond the perception of sense gratification and beyond the material qualities. Only if a living entity gives up the false conception that the body is the self and always thinks himself an eternal servant of Kṛṣṇa and the Vaiṣṇavas can he surpass the influence of māyā (mām eva ye prapadyante māyām etāṁ taranti te [Bg. 7.14]). A pure living entity who thus attains the stage of anartha-nivṛtti, cessation of everything unwanted, has nothing to enjoy in the material world. One attains this stage only by properly performing the functions of devotional service. Śrīla Rūpa Gosvāmī has written:

ādau śraddhā tataḥ sādhu-saṅgo ‘tha bhajana-kriyā
tato ‘nartha-nivṛttiḥ syāt tato niṣṭhā rucis tataḥ
“In the beginning one must have a preliminary desire for self-realization. This will bring one to the stage of trying to associate with persons who are spiritually elevated. In the next stage, one becomes initiated by an elevated spiritual master, and under his instruction the neophyte devotee begins the process of devotional service. By execution of devotional service under the guidance of the spiritual master, one becomes freed from all material attachments, attains steadiness in self-realization and acquires a taste for hearing about the Absolute Personality of Godhead, Śrī Kṛṣṇa.” (Bhakti-rasāmṛta-sindhu 1.4.15) If one is actually executing devotional service, then anarthas, the unwanted things associated with material enjoyment, will automatically disappear.
(Sri Caitanya Caritamrta------3:3:251------purport).