Today the world's most popular language is definitely English. The Internet network the people use globally is probably 80% English. In order to communicate with each other people from different countries usually use English as mediator.
English is easy enough to study it to sufficient level in several years, yet it's not universal.

According to my idea the universal language should be a paraverbal and symbolic one, so it would be intuitively understood by representatives of any world cultures, so that there would be no need to spend much time studying it.

In fact some basic emotions and feelings are expressed similarly in different world countries, for example
can be understood by every human being.

but what about some compound objects and abstract concepts?

Does any1 have any insights how to explain unverbally or paraverbally a new state law or a cooking receipt?
Probably through drawing.. or through music.. or using some basic visual images