Islam is very clear about intoxications. Intoxications are not allowed for some specific spiritual reasons. In life, alcohol is the reason of many sinful and negative behaviors. Consuming alcohol is one of the worst sins Muslim can commit. Intoxications were forbidden in Quran through several verses. At first, it was forbidden for Muslims to attend prayers when intoxicated. As in Quran Allah Almighty says,
“O ye who believe! Approach not prayers with a mind befogged, until ye can understand all that ye say,” (4:43)
Then it was revealed that alcohol contains some good and some evil but evil is greater than good. It is said in Quran,
“They ask thee concerning wine and gambling. Say: "In them is great sin, and some profit, for men; but the sin is greater than the profit." They ask thee how much they are to spend; Say: "What is beyond your needs." Thus doth God Make clear to you His Signs: In order that ye may consider-” (2:219)
And finally the verses of Quran forbidding intoxication,
“O ye who believe! make not unlawful the good things which God hath made lawful for you, but commit no excess: for God loveth not those given to excess. Eat of the things which God hath provided for you, lawful and good; but fear God, in Whom ye believe.” (5:90-91)
Quran uses strongest terms and warnings in reference to consuming alcohol. According to Quran alcohol covers reality and cover God from those who consume it. The use of alcohol is considered to be a grave sin. Not only consuming alcohol is a great sin but trading alcohol is also forbidden.
The purpose of forbidding alcohol in Quran is to emphasize to Muslims that purity of mind and body is essential for spiritual progress and closeness to Allah Almighty.