The worldly pleasures have diverted you, until you visit the grave; heavy verses from Allah to show us the truth [Sura Takathur]

Competition in [worldly] increase diverts you. Until you visit the graveyards. No! You are going to know. Then no! You are going to know. No! If you only knew with knowledge of certainty...You will surely see the Hellfire. Then you will surely see it with the eye of certainty. Then you will surely be asked that Day about pleasure.

Credit(s):
Image: http://www.equraninstitute.com/quranreading/102_takasur_607.htm
Translation: http://quran.com/102

Fasting is a shield ... hadith

Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: Fasting is a shield.

Abu Sa'id al Khudri (Allah be pleased with him) reported Allah's Messenger (may peace be upon him) as saying: 'Every servant of Allah who observes fast for a day in the way of Allah, Allah would remove, because of this day, his face farther from the Fire (of Hell) to the extent of seventy years' distance.'

[Muslim]

The dangers of the grave and boastfully laughing...(hadith)

Abu Bakr al-Siddiq (radyAllahu`anhu) said, “He who enters the grave without any provisions is as though he wishes to sail the sea without a ship.” An ascetic once said, “The one who sins while laughing, Allaah will make him enter the Fire while crying. And the one who obeys while crying (out of fear of Allaah) Allaah will make him enter Paradise while laughing.”