गुरु स्निग्धं पेशलगन्धि निर्हार्यग्निसहमसम्प्लुतधूमं विमर्दसहमित्यगुरुगुणाः ॥ कZ_०२.११.६० ॥
guru snigdhaṃ peśalagandhi nirhāryagnisaham asamplutadhūmaṃ vimardasaham ity aguruguṇāḥ
The qualities of aloeswood are: heavy; unctuous; delicately fragrant; it yields its essence; it withstands fire/heat; its smoke is not excessive or choking; and it tolerates rubbing/handling—these are the qualities of aguru.
Because aguru is burned for fragrance; smoke behaviour is a direct performance test relevant to consumer value and thus state valuation.