Dondo-Yaki is a fire ceremony for New Year's ornaments in Shinto(Nature worship).
It is held around January 15.
Generally, after use Ofuda in Kamidana, Shimenawa-Kazari, Kadomatsu are burned at local shrine.
In old times, Japanese people burned even handmade, plain Kamidana every year.
Current Japanese people don't dispose Kamidana because it is expensive and gorgeous.
However, they need to clean dusts on Kamidana constantly.
In Shinto, people always prepare new things.
The "Always New" or "Cycle" concept is Shinto's main stream.
It is called "Tokowaka".
Tokowaka is a kind of a circulation of nature.
Even Japan's important two shrines are rebuild every 20 years for many reasons.
⇒ Rebuilding / Grand shrine of ISE / Jingu-Shikinen-Sengu
One more main concept of Shinto is "Two opposite things".
⇒ Crane and Turtle / Evolution / Amatsu and Kunitsu
Japanese are sensitive to dirtiness too.
Uncleanness is called "Kegare" and it means material germs and spiritual impurity both.
So, most Japanese prefer something new to antiques.
Old thing has an invisible, tired energy.
Especially, you need to be careful with stones of Jewerly.
Stones absorb owner's thinking very well.
Many people are exposed by own or former owner's bad thinking without realizing.
⇒ Misinterpretation about healing crystal / Stones / Your fortune
Don't burn Shinto goods in your garden or public place.
Some people do that but Dondo-Yaki must be held under surveillance by gods of nature.
Personal Dondo-Yaki is very not good for your luck and the places.
If you can't visit Shinto shrine, please throw them away as garbage/trash.
Anyway, don't keep after use things in your house.
Shimenawa-Kazari is a powerful, spiritual vacuum machine to catch bad spirits.
After use Shimenawa-Kazari contains evils and ghosts who tries to invade a house.
Bad things always try to invade a house. They can visit a house by sticking to human's body.
So, please think that after use Shimenawa-Kazari is dead bodies of evils.
Do not touch it with bare hands.
In old times, Japanese people burned even handmade, plain Kamidana every year.
Current Japanese people don't dispose Kamidana because it is expensive and gorgeous.
However, they need to clean dusts on Kamidana constantly.
Akahata-yahata Jinjya, Fukuoka.
In Shinto, people always prepare new things.
The "Always New" or "Cycle" concept is Shinto's main stream.
It is called "Tokowaka".
Tokowaka is a kind of a circulation of nature.
Even Japan's important two shrines are rebuild every 20 years for many reasons.
⇒ Rebuilding / Grand shrine of ISE / Jingu-Shikinen-Sengu
One more main concept of Shinto is "Two opposite things".
⇒ Crane and Turtle / Evolution / Amatsu and Kunitsu
Japanese are sensitive to dirtiness too.
Uncleanness is called "Kegare" and it means material germs and spiritual impurity both.
So, most Japanese prefer something new to antiques.
Old thing has an invisible, tired energy.
Especially, you need to be careful with stones of Jewerly.
Stones absorb owner's thinking very well.
Many people are exposed by own or former owner's bad thinking without realizing.
⇒ Misinterpretation about healing crystal / Stones / Your fortune
Don't burn Shinto goods in your garden or public place.
Some people do that but Dondo-Yaki must be held under surveillance by gods of nature.
Personal Dondo-Yaki is very not good for your luck and the places.
If you can't visit Shinto shrine, please throw them away as garbage/trash.
Anyway, don't keep after use things in your house.
Shimenawa-Kazari is a powerful, spiritual vacuum machine to catch bad spirits.
After use Shimenawa-Kazari contains evils and ghosts who tries to invade a house.
Bad things always try to invade a house. They can visit a house by sticking to human's body.
So, please think that after use Shimenawa-Kazari is dead bodies of evils.
Do not touch it with bare hands.
I'd say this is not good for your luck.
Don't eat these things.
By the way, purification by water is called Misogi.
Taking a shower is also Misogi for human.
Please wash your foots, ankles, wrists, back of neck and shoulder very well.
Wandering ghosts stick to human's body there.
Clean and tidy house is also important to your luck.
Japanese have big cleaning event at the end of the year.
⇒ Oosouji / December / Cleaning event of Japan
⇒ Kegare and your fortune / Spiritual effects / Cleaning