The word ‘tafseer’ comes from the root word ‘fassara’, which means to explain.Therefore, Tafsir of Quran means the explanation or interpretations of the verses of Quran. The Tafsir of Quran is not something done by anyone with ordinary intellect and understanding of Islam. It is done by people after obtaining extensive knowledge about Islam and reading the history of Islam thoroughly. The objective of a Tafsir is to find out the true meanings of the verses of Quran, so that the audience could benefit from it and know the right and true message of Quran.
There are many reasons for why Tafsir of Quran is important. The few important reasons that make Tafsir important are as follows:

(1). Firstly, it tries to explain Quran so that the understanding of the reader about Quran and its message increases. Reading only the translation can give the literal meanings of the words of Quran, however, Tafsir comes with context in which a particular Ayah was revealed, hence giving a context to each and every word, which consequently means a better understanding of Quran and its verses. If you want to read Quran with its translation, you can enroll for the online Quran Translation course now and start knowing the verses with their meanings.
(2). Secondly, Tafsir is also important when it comes to driving out the laws of Islam from Quran. Verses of Quran come with instructions, and then there are the hadiths of Prophet (PBUH) that also gives instructions. Thus, Tafsir combines both and gives a complete and comprehendible set of instructions to the reader.