Some children speak clearly and show good social communication skills, but have trouble organizing their thoughts into well-developed sentences, stories or essays. This is referred to as a language difficulty.

Language is a system of signs and symbols organised according to rules we use to communicate.  Most importantly, language is a more abstract concept than speech in the sense that those signs and symbols (words) are arbitrarily agreed upon by the members of a social group.

Those rules and symbols are stored somewhere in our brain and develops over time being very influenced by the environment in which it develops.  A little bit like a seed that grows into a beautiful flower with the right amount of sun and water.

Language like the flower is beautiful yet fragile.  Many factors affect its growth and sometimes it needs a little help.