They can protect the product and convey an image of sophistication to consumers. Candles used to be used to light up a room in the past. Nowadays they still can be used to do this but they are also employed to decorate a room or for therapeutic reasons. Some religions also utilize them for symbolic purposes. The businesses selling candles need to try and get their product recognized...
Brands that want to portray they are modern need to manufacture a good-quality product and convey this message to consumers before they have a look at it. The packaging can help here due to it being the first thing people will interact with before getting to the product. Custom boxes are the ones that modern brands need to consider if they want people to know their company is an innovative one....