Candles can represent lots of things
nothing
Not at all. They are common in many religions.
they symbolise the colors on all the flags throughout the world.
What religions do you mean? There isn't enough space here for me to describe all aspects of all religious worship.
vampires symbolise all sorts of things, but they represent, in some cases, fear
if you mean that which religion does have its origin in India then all religions except Hinduism and Buddhism and jainism all other religions are alien to it .
You can buy Soy Candles, Palm Wax Candles, Paraffin Candles, or Beeswax candles. They come in all different shapes and sizes and containers as well.
I'm not fully sure if you are saying "regions" or if you mean to say "religions" but either way all of them are. Humans inhabit all of the Earth so all of the regions are "humans regions" and all religions are practiced only by man so they are "humans religions".
there are over 10,000 religions world wide. name your favourite and define what you mean by 'spiritual activity'
Skulls, particularly skull racks known as tzompantli, symbolized death and the cycle of life and rebirth for the Aztecs. They were seen as representations of power, protection, and fertility. The Aztecs believed that offering skulls to the gods would ensure the continuation of life and the universe.
dove's symbolise purity, beccause they are white, they represent peace, harmony and friendship, all combined may mean purity of the soul.
Each night of the 8 nights of Hanukkah, the candles are lit. 2 candles are lit on the first night, and then each night an additinal candle is lit until all 9 candles are lit on the 8th night.
These tattoos are worn by all airbenders, they symbolise the arrows of the flying bison, the first airbenders. An airbender receives these tattoos when they successfully mastered all airbending techniques.