yatholmukad visphulingad

 dhumad vapi sva-sambhavat

apy atmatvenabhimatad

 yathagnih prthag ulmukat

 

Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 

 

The blazing fire is different from the flames, from the sparks and from the smoke, although all are intimately connected because they are born from the same blazing wood.

 

Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 

 

Although the blazing firewood, the sparks, the smoke and the flame cannot stay apart because each of them is part and parcel of the fire, still they are different from one another. A less intelligent person accepts the smoke as fire, although fire and smoke are completely different. The heat and light of the fire are separate, although one cannot differentiate fire from heat and light.