So Kṛṣṇa says, puṇyo gandhaḥ pṛthivyāṁ ca. When you smell something very fragrant... Just like in the flower. There are different varieties of flower, and they are exacting different varieties of aroma from the earth. So the good smell of the flower... In some other place it is said in the Bhāgavatam that the..., when you see flower, you see Kṛṣṇa smiling. That is the seeing of Kṛṣṇa smiling. Therefore the flower should be utilized for Kṛṣṇa's service. Because these flowers, everything, is Kṛṣṇa's energy. Parāsya śaktir vividhaiva śrūyate (Cc. Madhya 13.65, purport). So specifically good fragrance of flower, Kṛṣṇa says that "I am that." Kṛṣṇa's particular presence is there. So we can remember Kṛṣṇa immediately. This Kṛṣṇa consciousness movement is that you remember always Kṛṣṇa. Always Kṛṣṇa. Just like Mahārāja Ambarīṣa did. Sa vai manaḥ kṛṣṇa-padāravindayoḥ (SB 9.4.18). He engaged his mind at the lotus feet of Kṛṣṇa simply by engaging the mind. Vacāṁsi vaikuṇṭha-guṇānuvarṇane. If we utilize our senses always in the service of the Lord, that is bhakti. At the present moment we are utilizing our senses for material objectives. That is to be purified. It should be used for Kṛṣṇa's service. We are using our senses for the service of society, friendship, and love. But that service should be transferred to Kṛṣṇa. Then it is bhakti. Sarvopādhi-vinirmuktaṁ tat-paratvena nirmalam (CC Madhya 19.170). Bhakti means... This flower, we are smelling; we are enjoying. That is sense gratification. Similarly, this same flower, if it is offered to Kṛṣṇa as garland, that He will smell it and feel pleasure, that is bhakti.
So to come to the bhakti-mārga, or devotional service, it is not very difficult. The smell is creation of God, or Kṛṣṇa, puṇyo gandhaḥ pṛthivyāṁ ca. Therefore the smell should be used for Kṛṣṇa's pleasure. This is bhakti, not for my pleasure. This is called tyāga. Tyāga means that actually it should be used for Kṛṣṇa, who has produced it. Hṛṣīkeṇa hṛṣīkeśa-sevanaṁ bhaktir ucyate (CC Madhya 19.170). Our senses are also Kṛṣṇa's senses. He is Hṛṣīkeśa. Hṛṣīka-īśa, iti hṛṣīkeśa. Hṛṣīka means senses. Unfortunately, our senses are being used for sense satisfaction, neither for our use. It is for sense gratification. So bhakti means this practice of using the senses for sense gratification should be rectified, should be purified. Then the same senses will be utilized for Kṛṣṇa's satisfaction, and then you become a bhakta. Kṛṣṇa's things may be used for Kṛṣṇa. Sarvopādhi-vinirmuktaṁ tat-paratvena nirmalam (CC Madhya 19.170).
The Caitanya-caritāmṛta kaṛacā, the author of Caitanya-caritāmṛta, he has distinguished between kāma and prema. Kāma means lusty desires or sex desires. Generally, it is meant, sex desires. So he has very simplified the matter very much. Ātmendriya-prīti-vāñchā—dhare... nāma dhare... prema... tāre... bali dhare...nāma kāma (CC Adi 4.165), like that. Kṛṣṇendriya-prīti-vāñchā dhare nāma prema, and ātmendriya-prīti-vāñchā—dhare nāma kāma. They... Actually, senses are there for satisfaction. That's a fact. Otherwise, why the senses are there? Just like the smell is there, and the nose is there. So smell is there for satisfaction of the senses. For the smell, for the nose, nostril, the beautiful flower is there, or beautiful, anything beautiful... To the man, woman is beautiful; to the woman, man is beautiful. So the eyes are there, and the beautiful things are there. That is arrangement. That is development of this nature. As soon as... It is... It is coming from the fire. The... That we have already described. The fire is the origin of beauty and the fire is the origin of eyesight. The loss of eyesight means there is less fiery element. Loss of appetite means there is less of fiery elements. In the Ayurvedic treatment it is called agni-māndyam. So these are transformation of the fire. Similarly, the smell is transformation of the rasa, taste.
How subtle things are going on, that is described in the Sāṅkhya philosophy presented by Kapiladeva, but we do not understand practically how things are going on. We are simply accepting the words, that "By transformation of this thing, this thing is coming out so much." Neither it is possible to make experiment. Maybe, but scientists can take advantage of this Sāṅkhya philosophy. So you may experiment or not. That doesn't matter. Things are going on. Prakṛteḥ kriyamāṇāni guṇaiḥ karmāṇi sarvaśaḥ, ahaṅkāra-vimūḍhātmā manyate... (BG 3.27). What is called? Kartāham iti manyate. Actually, these rules of transformation as ordained by daiva-coditāt, by the supreme design, that is going on. But we, under the name of so-called scientist, we are trying to take the credit. Just like they are testing now—in the test tube they are making life. But the substance, the semina, male and female, that you cannot create. That you have to take from the male, from the female, then put together in the test tube. Then it may come. They are very much proud that "Now in the laboratory we are making life by chemical combination." But the actual chemical coming from by this transformation under the supervision of the daiva, daiva-coditāt. Daiva is the principle cause. Sarva-kāraṇa-kāraṇam (Bs. 5.1). That they do not accept. And people are giving credit to these artificial scientist.