In Śrīmad-Bhāgavatam (10.29.15) it is stated:
kāmaṁ krodhaṁ bhayaṁ sneham aikyaṁ sauhṛdam eva ca
nityaṁ harau vidadhato yānti tan-mayatāṁ hi te
The word kāma means lusty desire, bhaya means fear, and krodha means anger. If one somehow or other approaches Kṛṣṇa, his life becomes successful. The gopīs approached Kṛṣṇa with lusty desire. Kṛṣṇa was a very beautiful boy, and they wanted to meet and enjoy His company. But this lusty desire is different from that of the material world. It appears like mundane lust, but in actuality it is the highest form of attraction to Kṛṣṇa.
(Sri Caitanya Caritamrta----2:1:55----purport).

So ātmendriya-tṛpti-vāñchā dhare tāra nāma kāma. Kāma means lust. What is lust? Lust means whenever you try to satisfy your senses, that is called lust. And the same, whenever you try to satisfy Kṛṣṇa's senses, that is love. Practically the same business, but personal and Kṛṣṇa. So Kṛṣṇa consciousness movement means we have to act everything for Kṛṣṇa under proper direction.
(Lecture on Bhagavad-Gita----1:44).

So when our senses are engaged in the satisfaction of the master of the senses, that is called bhakti. This is the definition of bhakti, devotional service. And when the senses are engaged for sense gratification, not for the master, that is called kāma. Kāma and prema. Prema means to love Kṛṣṇa and do everything for satisfaction of Kṛṣṇa. That is prema, love. And kāma means everything done for the satisfaction of my senses. This is the difference. The sense is the medium. Either you do it, satisfy your senses, or you satisfy Kṛṣṇa's senses. But when you satisfy Kṛṣṇa's senses, you become perfect, and when you satisfy your senses, you become imperfect, illusioned.
(Lecture on Bhagavad-Gita----2:9).

So this kind of hard labor simply for satisfying the tongue and the genital, that is hog civilization. That is warned by Ṛṣabhadeva, nāyaṁ deho deha-bhājāṁ nṛloke kaṣṭān kāmān arhate (s.b.5:5:1). Why? Kāmān means eating, sleeping, sex life and defending. These are kāmān, bodily necessities of life. As soon as you will get this material body, you will have to eat. In the spiritual body there is no eating. Eating means to sustain this material body. You will find many saintly persons. Practically, they do not eat.
(Lecture on Bhagavad-Gita----4:22).

This verse refers to the statement of Śrīmad-Bhāgavatam wherein it is stated that
akāmaḥ sarva-kāmo vā
mokṣa-kāma udāra-dhīḥ
tīvreṇa bhakti-yogena
yajeta puruṣaṁ param
(S.B.2:3:10)
The idea is that there are three class of men. One class of men they are simply desiring material comforts, desiring. They want nice house, nice wife, nice comfortable life, everything nice for the comfort of this body. They are called sarva-kāma. Sarva-kāma means their desire has no end.
(Lecture on Bhagavad-Gita----4:11-18).

Just like in the modern materialistic world they are trying to improve material comforts but they do not know when does it end. One after another, one after another, one after another. Therefore they are called sarva-kāma, unlimitedly desiring. There is no end of desiring. Such persons, akāma. And akāma means one who has no desire. Just like those who are devotees, Kṛṣṇa conscious, they have no desire. They don't like any material comforts, any material improvements. They want simply Kṛṣṇa. Akāmaḥ sarva-kāmo vā and mokṣa-kāma (s.b.2:3:10). Mokṣa-kāma means one who is disgusted with these material desires and aspires after something void, impersonal, or freedom from all these desires, mokṣa-kāma.
(Lecture on Bhagavad-Gita----4:11-18).