Control of the senses means that the senses should not be used for unnecessary personal enjoyment. There is no prohibition against meeting the proper needs of the senses, but unnecessary sense enjoyment is detrimental for spiritual advancement. Therefore the senses should be restrained from unnecessary use. Similarly, one should restrain the mind from unnecessary thoughts; that is called śama. One should not spend one's time pondering over earning money. That is a misuse of the thinking power. The mind should be used to understand the prime necessity of human beings, and that should be presented authoritatively. The power of thought should be developed in association with persons who are authorities in the scriptures, saintly persons and spiritual masters and those whose thinking is highly developed. Sukham, pleasure or happiness, should always be in that which is favorable for the cultivation of the spiritual knowledge of Kṛṣṇa consciousness. And similarly, that which is painful or which causes distress is that which is unfavorable for the cultivation of Kṛṣṇa consciousness. Anything favorable for the development of Kṛṣṇa consciousness should be accepted, and anything unfavorable should be rejected.
(Bhagavad-Gita----10:4-5----purport).

Kuvera, who is known as the son of Iḍaviḍā, was very pleased with Dhruva Mahārāja because he did not ask him for anything materially enjoyable. Kuvera is one of the demigods, so one may put forward the argument, "Why did Dhruva Mahārāja take a benediction from a demigod?" The answer is that for a Vaiṣṇava there is no objection to taking a benediction from a demigod if it is favorable for advancing Kṛṣṇa consciousness. The gopīs, for example, worshiped Kātyāyanī, a demigoddess, but the only benediction they wanted from the goddess was to have Kṛṣṇa as their husband. A Vaiṣṇava is not interested in asking any benediction from the demigods, nor is he interested in asking benedictions from the Supreme Personality of Godhead. It is said in the Bhāgavatam that liberation can be offered by the Supreme Person, but even if a pure devotee is offered liberation by the Supreme Lord, he refuses to accept it. Dhruva Mahārāja did not ask Kuvera for transference to the spiritual world, which is called liberation; he simply asked that wherever he would remain—whether in the spiritual or material world—he would always remember the Supreme Personality of Godhead. A Vaiṣṇava is always respectful to everyone. So when Kuvera offered him a benediction, he did not refuse it. But he wanted something which would be favorable to his advancement in Kṛṣṇa consciousness.
(Srimad Bhagavatam----4:12:9----purport).

Here is an important point. Lord Caitanya Mahāprabhu wanted to invent a way to capture the Māyāvādīs and others who did not take interest in the Kṛṣṇa consciousness movement. This is the symptom of an ācārya. An ācārya who comes for the service of the Lord cannot be expected to conform to a stereotype, for he must find the ways and means by which Kṛṣṇa consciousness may be spread. Sometimes jealous persons criticize the Kṛṣṇa consciousness movement because it engages equally both boys and girls in distributing love of Godhead. Not knowing that boys and girls in countries like Europe and America mix very freely, these fools and rascals criticize the boys and girls in Kṛṣṇa consciousness for intermingling. But these rascals should consider that one cannot suddenly change a community's social customs. However, since both the boys and the girls are being trained to become preachers, those girls are not ordinary girls but are as good as their brothers who are preaching Kṛṣṇa consciousness. Therefore, to engage both boys and girls in fully transcendental activities is a policy intended to spread the Kṛṣṇa consciousness movement. These jealous fools who criticize the intermingling of boys and girls will simply have to be satisfied with their own foolishness because they cannot think of how to spread Kṛṣṇa consciousness by adopting ways and means that are favorable for this purpose. Their stereotyped methods will never help spread Kṛṣṇa consciousness. Therefore, what we are doing is perfect by the grace of Lord Caitanya Mahāprabhu, for it is He who proposed to invent a way to capture those who strayed from Kṛṣṇa consciousness.
(Sri Caitanya Caritamrta----1:7:31-32----purport).

It is the duty of a sannyāsī, a person in the renounced order, to be always equipoised, and that is also the duty of a learned man and a Vaiṣṇava. A Vaiṣṇava, a sannyāsī or a learned person has no conception of the material world; in other words, he has no conception of anything materially important. He has no desire to use sandalwood pulp for sense gratification, nor does sense gratification make him hate mud. Acceptance or rejection of material things is not the concern of a sannyāsī, a Vaiṣṇava or a learned person. An advanced devotee has no desire to enjoy or reject anything. His only duty is to accept whatever is favorable for the advancement of Kṛṣṇa consciousness. A Vaiṣṇava should be indifferent to material enjoyment and renunciation and should always hanker for the spiritual life of rendering service to the Lord.
(Sri Caitanya Caritamrta----2:4:179----purport).

One might ask, “Why shouldn’t ordinary parents be served?” As stated in Śrīmad-Bhāgavatam (5.5.18):
gurur na sa syāt sva-jano na sa syāt
pitā na sa syāj jananī na sā syāt
daivaṁ na tat syāt na patiś ca sa syān
na mocayed yaḥ samupeta-mṛtyum
"One who cannot deliver his dependent from the path of birth and death should never become a spiritual master, a relative, a father or mother, or a worshipable demigod, nor should such a person become a husband." Everyone naturally gets a father and mother at the time of birth, but the real father and mother are those who can release their offspring from the clutches of imminent death. This is possible only for parents advanced in Kṛṣṇa consciousness. Therefore any parents who cannot enlighten their offspring in Kṛṣṇa consciousness cannot be accepted as a real father and mother. The following verse from the Bhakti-rasāmṛta-sindhu (1.2.200) confirms the uselessness of serving ordinary parents:
laukikī vaidikī vāpi yā kriyā kriyate mune
hari-sevānukūlaiva sa kāryā bhaktim icchatā
"One should perform only those activities—either worldly or prescribed by Vedic rules and regulations—which are favorable for the cultivation of Kṛṣṇa consciousness."
(Sri Caitanya Caritamrta----3:13:113----purport).