From the benefits of learning the Arabic language is the correction of the tongue with the Arabic tongue which the speech of Allah was revealed in. Because of this, understanding the Arabic language is extremely important. But the sciences of the Arabic language are difficult in the beginning and become easy thereafter.
It is the example of a house made of cane (the likes of sugar cane), but its door is made of steel. Meaning, it is difficult for one to enter, but once one does, is then made easy. Due to this, I encourage the student to learn the foundations of the language in order to make the rest easy for him/her.
The sciences of the Arabic language (nahw) are from the important forms of knowledge that are incumbent upon the Muslims to focus on. This is because the enemies of Islam seek to divert the Muslims away from the language of their religion and busy them with what has less importance in their religion. And Allah is the Helper.