Recite that which has been revealed to you of the Book and keep up prayer; surely prayer keeps (one) away from indecency and evil, and certainly the remembrance of Allah is greatest, and Allah knows what you do

Everything in the universe is consistent. It is the way Allah created it to be. In order for us to maintain consistency and not go astray during our daily lives, we must remember, at fixed times, the one who Created us. On this issue, Allah says in sura 4:103

Verily the prayers at fixed hours have been prescribed for the believers

We must not underestimate the importance of this obligation. Prayer is addressed directly and indirectly in the Qur'an over 100 times. It is the second pillar of our religion, and it has been agreed upon that one must pray the obligatory 5 prayers each day in order to be Muslim.

"The covenant (which distinguished) between us and them is Prayer, so whoever abandoned it committed an act of disbelief."

But after them followed a posterity who missed prayers and followed after lusts soon, then, will they face destruction

And in sura 107: 4 and 5

So, woe to the worshipers who are neglectful of their prayers