Rasa, taste, is one, but it becomes varieties by different combination of bhautikānām, material elements. This is chemistry. Chemistry means mixing of different chemicals and produce another element. Just like soap. Soap is mixture of fat and soda. So fat, oil, is something else, and soda is another thing, but if you carefully mix them together, it becomes soap. So the whole world is the mixture of these five elements: kṣitir āp... Fire, water... Tejo-vāri-mṛd-vinimayaḥ. The Sanskrit word is tejo-vāri-mṛd-vinimayaḥ. Mṛd means this earth, and tejas means fire, and vāri means water. You take earth mixed with water and put it into the fire; it becomes brick. Then you take another mixture; that becomes cement. And take the help of cement and take the help of brick; then construct a house.
So whole material world is nothing but tejo-vāri-mṛd-vinimayaḥ, exchange of, elementary, this earth, water, and fire. The same principle here also: taste. Just like we cook the same oil, ghee, and salt and turmeric, but we prepare different preparations, hundred, two hundred preparation, simply by the process of mixing earth. So that is going on. Now, by Kṛṣṇa's energy... Parāsya śaktir vividhaiva śrūyate (Cc. Madhya 13.65, purport). His energy is working in such subtle way, mysterious way. Therefore Kṛṣṇa is known as Yogeśvara. The same earth, same water, but the seed different. So one tree is coming to produce chili, another tree is coming out to produce tomato, another tree is coming out to produce mango. Different taste. Mango is sweet, tomato is sour, chili is pungent. But these things are required, varieties. Although the source is one. Source is one—the earth—but the earth contains all other five elements. Kṣitir āp tejo vāri mṛd vyoma. Everything is there in the earth. Everything is there, and by the expert handling of the prakṛti and behind the prakṛti, Kṛṣṇa, varieties of things are coming. This is Kṛṣṇa consciousness, how things are coming by the handling, expert handling of Kṛṣṇa.