Thread by @yamachandemonde

ちょっと別の切り口から旭日旗に関して知らない外国人に説明するためのものを作ってみました。
ちなみに私はこの分野の専門家ではございませぬ。
以下少々長いですが↓

Since ancient times the sun is the religious symbol connected with life, power, light, glory, rebirth, restoration, blessing, salvation, purification, wisdom, mercy, fertility ...
People have worshiped the sun itself or solar gods personifying the sun.

Ra(Re), ancient Egyptian deity of the sun
(In Egypt, the Valley of the Kings and most of pyramids are located at the west bank of the Nile, west is direction of sunset, it means 'death.')

In religious art there is a characteristic motif in the form of radiating lines, signifies light, called Halo, Nimbus or Aureola,
commonly seen behind the head or entire body of god or saint in a picture or of a statue, to express their power, glory, holiness and so on.

Mitra in Zoroastrianism with radiating-light motif (right)

Mithraism in ancient Roman empire was connected to Christianism.
(Mythraist thought Mithras(the solar deity) "dies" on the winter solstice, after that day he "resurrect" or "be restored.")

Helios, ancient Greek god and personification of the Sun

Aureola (light-motif) in Christianity

Sūrya, the solar deity in Hinduism

Amaterasu, the solar goddess with sunlight motif

Examples of an image and a statue of Buddhism with light motif

Prince Shōtoku(6-7th), whom every Japanese learns in the school, described Japan as "land of the rising sun."

It is clearly historical, traditional and sacred symbol for mankind.
Rising sun flag of Japan also conforms to this universal truth.

Rising sun motif is rooted in Japanese life, culture, custom, religion ...
To celebrate large catch of fish with Seven Lucky Gods

Criticizing Rising Sun flag is violation and uncivilized behavior.
Korean despises other cultures to hide this inconvenient fact they are shamed of themselves because they don't have their own culture, tradition, but only what they have is long history of dependency of China.