Hasidut untuk Imamat 6:2

צַ֤ו אֶֽת־אַהֲרֹן֙ וְאֶת־בָּנָ֣יו לֵאמֹ֔ר זֹ֥את תּוֹרַ֖ת הָעֹלָ֑ה הִ֣וא הָעֹלָ֡ה עַל֩ מוֹקְדָ֨ה עַל־הַמִּזְבֵּ֤חַ כָּל־הַלַּ֙יְלָה֙ עַד־הַבֹּ֔קֶר וְאֵ֥שׁ הַמִּזְבֵּ֖חַ תּ֥וּקַד בּֽוֹ׃

Perintahkanlah kepada Harun dan anak-anaknya: Inilah ajaran tentang korban bakaran: korban bakaran itu harus tetap berada di atas perapiannya di atas mezbah sepanjang malam sampai pagi, dan api mezbah harus tetap dinyalakan di atasnya.

Mevo HaShearim

In Noam Elimelekh Parshat Tzav, on the verse “Zot torat haOlah,”555Leviticus 6:2. it says: “It is impossible for one to break all his tendencies with which he has grown up with from his mother’s womb. Rather one must raise them to holiness. For example, one who has the trait of anger should turn away from ‘external’ anger and be angry at the wicked. So too with all traits.” This refers to the aforementioned hasidic avodah, of ‘for from it we shall take to serve the Lord.’
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Toldot Yaakov Yosef

And it appears to me that the explanation of this can only come through explaining the verses 2 through 6 of the 6th chapter of Vayikra: it is difficult, behold, why do I have written "is kept going on it" (Leviticus 6:2) which does not seem to apply to Aharon, and yet the verse opened with "command Aharon".
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Toldot Yaakov Yosef

And with all this one can understand the command: 'command Aharon and his sons etc, the fire of the altar perpetually on (Leviticus 6:2-6) It means that in Aharon, there is where the fire is to be perpetual, since the altar is a symbol of compassion and the flames of Ya"h, of the Shechinah, which is called altar, as it is known, is to be perpetually on, inside the kohen, [meaning] one who will serve the Holy Blessed Name as a kohen, that is, one who will arouse those two entryways, which are north and south.
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