To Curious...
What is the real reason of the rules of 'tutup aurat' (cover all bodies with clothes and wear veil which cover chest and ribs) ?
First of all, your question is a very good question because this matter is stated directly in the Quran and shows the importance for us to obey them. To answer your question, we will use Tafsir Ibn Kathir (as explained later) because the Quran cannot simply be translated. Ones need wide range of knowledge (ex: where the ayat revealed, why it was revealed etc) to get the real meaning of Quran and certain ayat only Allah The All-Knowing knows the true meaning of them as in first ayat in Surah Al-Baqarah which consist of only 3 letters