From the above poem described in the poem symbol used is...the word...is used as a symbol comparison between ...with... Which used instead of about of love / of that country a symbol that people all over the world accept and understand each other. ,so the type of symbol is Conventional symbols that those widely recognized by society (Traditional symbol)
The flag of the Kingdom of Thailand shows five horizontal stripes in the colours red ,white , blue, white and red, with the middle blue stripe being twice as wide as each of the other four. The Thai name for the flag is ธงไตรรงค์ (Thong Trairong), meaning tricolour flag. The colours are said to stand for nation-religion-king, an unofficial motto of Thailand, red for the land and people, white for Theravada Buddhism and blue for the monarchy