समस्तवासनात्यागं धूपं तस्य विचिन्तयेत् ।ज्योतिर्मयात्मविज्ञानं दीपं संदर्शयेद्बुधः ॥ २० ॥
In plain words
Let go of every latent tendency, all of them — contemplate that letting-go as the incense you offer to That. And the knowledge of the Self, which is made of nothing but light — the wise one holds that up as the lamp.
Close to the Sanskrit
The abandonment of all latent tendencies — as incense for That let one contemplate it. The light-made knowledge of the Self — as the lamp let the wise one display it.