Generally people take meaning of reading or reciting the Quraan as just read without understanding, which is totally wrong. The demand of the Quraan is below what every Muslims must know:

1>    to believe in the Quraan;
2>    to read it;
3>    to understand it; Ponder on it;
4>    to act upon its teachings (No Changes Without Right ACTION); and
5>    to convey its message and teachings to others;

Those who don’t read the Quraan with understanding/translation and do not Practice on Allah’s commandments are like ASS/Donkey carrying books, (Ref: Al_Quraan_062.005).

… Recite the Quraan in slow, measured rhythmic tones, (Al_Quraan_073.004).

(So don’t rush to finish it, instead take your time to understand each and every Ayaat and reflect on it.)

Please read my article “How to Understand Quraan”
http://www.global-right-path.com/Ummah-Reformer/MR_Quraan_Understanding.htm

There are clear messages/directions in the Quraan and we must try to understand it and reflect on it in sprit. Here let us understand what messages/directions/lessons Allah wants to take it and reflect on it.

Prophet Muhammad (Peace-Be-Upon-Him) said to recite/read Surah Al-Kahf every Friday means We MUST have to take Lessons/Guidance from it and keep remember it and inform others as well.

Lessons in Surah Al-Kahf (chapter-018):

First of all, in this Surah Allah gives to us 4 different but INTERESTING stories to take lessons from it and reflect on it.

Let us explore each along with the lessons we get from each of them.

Lesson-1: Peacefully Migrate to Save Your Faith/Lives (Ref: Al_Quraan_018.009-026):

It’s the story of young men who lived in a disbelieving town where it is hard to worship, so they decide to migrate for the sake of Allah and run away. Allah rewards them with mercy in the cave and protection from the elements of nature. The lesson of this story is the 'Trial of Faith', so if one has trial of faith and there is no way to protect his faith/life then he must peacefully migrate to some other location. You MUST migrate to save your Faiths/Lives.

Lesson-2: Thankful to Allah (Ref: Al_Quraan_018.023-024):

A story of a man whom Allah blessed with two beautiful gardens, but the man forgot to thank the One who blessed him with everything and he even dared to doubt Allah regarding the afterlife. So his garden was destroyed - he regretted it, but was too late and his regret did not benefit him. Always be Thankful to Allah by following his Commandments in Sprit.

Lesson-3: Trial of Power/Wealth/Knowledge/Wisdom (Ref: Al_Quraan_018.065-082):

When Musa (Peace-Be-Upon-Him) was asked “Who is the most knowledgeable of the people of Earth?” Musa (Peace-Be-Upon-Him) said that it was him as he assumed he was the only prophet on Earth at the time. But Allah revealed to him that there’s someone else who knows more than him about certain things. Musa (Peace-Be-Upon-Him) traveled looking for him and learned how divine wisdom can sometimes be hidden in matters which we perceive as bad. Never be Proud of your Power/Wealth/Knowledge/Wisdom etc. RATHER Always Be Humble and Down to Earth.

Lesson-4: Global Knowledge/Wisdom to Save Humanity (Ref: Al_Quraan_018.083-101):

Allah mentions the story of a great king who was given knowledge and power travelling the world helping people and spreading all that’s good. He was able to overcome the problem of Gog/Magog (Yajooj-Majooj) by building a massive dam with the help of people whom he could not even understand. Expose Yourselves if You Have any Wisdom to Save Global Humanity Without any Discrimination and/or Be with Those Who Have Global Knowledge/Wisdom to Save Humanity in Sprit. Media Must Play an Active Role on Promoting Global Wisdom to Save Humanity.

If life was that easy that only reciting few verses of surah will protect us then Prophet Muhammad (Peace-Be-Upon-Him) don’t have to go for 29 battles in his last ten years in al-Madinah al-Munawwarah to defend.

https://www.quora.com/How-many-battles-did-the-prophet-Muhammad-attend-by-himself