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धूमेनाव्रियते वह्निर्यथादर्शो मलेन च ।
यथोल्बेनावृतो गर्भस्तथा तेनेदमावृतम् ॥३- ३८॥

dhoomenaawriyate wahniryathaadarsho malena cha ।

yatholbenaawRRito garbhastathaa tenedamaawRRitam ॥३- ३८॥

Source: Automatic ITRANS Transliteration

As by smoke fire is covered and mirror by dust,
As embryo is covered by womb, so by that is this covered.

As smoke obscures fire, and dust, a mirror, as the womb envelops an embryo, so they [lust and anger] obscure This.

Source: Milind S. Pandit

Kaama, the passionate desire for all sensual and material pleasures, becomes anger if it is unfulfilled. As the fire is covered by smoke, as a mirror by dust, and as an embryo by the amnion, similarly the Self-knowledge gets obscured by Kaama.

Source: The Bhagavad-Gita: The Sacred Song

As fire is covered by smoke, as a mirror is covered by dust, or as the embryo is covered by the womb, similarly, the living entity is covered by different degrees of this lust.

Source: Bhagavad Gita As It Is