A punk is a smoldering stick used for lighting firework fuses. It is safer than a match or a lighter because it can be used from a greater distance and does not use an open flame. They are made of bamboo and a brown coating of dried manure or compressed sawdust.
Punks often resemble sticks of incense, and in some countries actual incense sticks are used in a similar fashion.
Since incense is mentioned, here’s some information about this item as well:
The term incense refers to the substance itself, rather than to the odour that it produces. It was used by Chinese cultures from Neolithic times and became more widespread in the Xia, Shang, and Zhou dynasties.
The earliest recorded use of incense comes from the ancient Chinese, who used incense from herbs and plant products (such as cassia, cinnamon, styrax,sandalwood, amongst others) during the rites of formal ceremonies. Eventually, the Hindus adopted the use of incense from the Chinese, but they were the first to also use roots for incense.
Incense was used by the ancient Egyptians, not only to counteract unpleasant odours, but also to drive away demons and please the gods.
At around 2000 BC, Ancient China was the first civilization who began the use of incense in the religious sense, namely for worship.
The Babylonians used incense while offering prayers to divining oracles. Incense spread from there to Greece and Rome.
Brought to Japan in the 6th century by Korean Buddhist monks, who used the mystical aromas in their purification rites, the delicate scents of Koh (high-quality Japanese incense) became a source of amusement and entertainment with nobles in the Imperial Court during the Heian Era200 years later.
During the 14th century Shogunate, a samurai warrior might perfume his helmet and armor with incense to achieve an aura of invincibility (as well as to make a noble gesture to whomever might take his head in battle).
It wasn’t until the Muromachi Era during the 15th and 16th century that incense appreciation spread to the upper and middle classes of Japanese society.
Read more at http://en.wikipedia.org/wiki/Incense 
Got to know this song from my baby sis. Fireworks kind of reminded me of fire raining from the sky and thus sharing this song with you all.
Have fun reading and listening~
Cheers & TTFN~