To understand & guage the importance of the remembrance of Allah (swt) we will list seven advantages of engaging in zikr against seven dis-advantages of not performing zikr and our conclusion will be based upon the logical comparison.of the two.

ADVANTAGES
DISADVANTAGES
“Remember Allah abundantly, in order that you become successful”
Quran (Surah 8: Verse 45)

“Believers, do not let either your possessions or
your children divert you from the Remembrance of Allah. Those who do that
shall be the losers”.
Quran (Surah 63: Verse 9)

“Only in the remembrance of Allah (swt) will your heart find peace”

Quran (Surah 13: Verse 28)

“Whosoever turns away from My remembrance, his life
will be made tight and narrow on the Day of Resurrection We shall raise
him blind”
Quran (Surah 20: Verse 124)

“Those men and women who engage much in Allah’s praise. for them
Allah has prepared forgiveness and a Great Reward”
Quran (Surah 33: Verse 35)

“Whosoever turns away from the Remembrance of Allah,
He will hurl him into a stern punishment”.
Quran (Surah 72: Verse 17)

“When any group of men remember Allah, angels surround them and mercy
covers them, tranquility descends upon them, and Allah mentions them to
those who are with Him.” (Muslim)
“Satan has mastered them and caused them to forget the Remembrance
of Allah. Those are satan’s party; and satan’s party shall assuredly be
the losers”
Quran (Surah 58: Verse 19)
“They are the most wise who remember Allah, standing sitting and
lying down”
Quran (Surah 4: Verse 190)
“Those who are admitted into paradise will not remorse over anything
of this world, except over the times in which the zikr of Allah was not
utilised” (Bukhari)

“Their skins and their hearts soften to the remembrance of Allah”
Quran (Surah 39: Verse 23)

“Woe to those whose hearts have hardened against the
Remembrance of Allah! Those are in clear error”.
Quran (Surah 39: Verse 22)
“The rememebrence of Allah (swt) is the greatest (deed)”
Quran (Surah 29: Verse 45)
“Whosoever blinds himself from the Remembrance of the Merciful, We
shall assign for him a evil satan who will be his (ever misleading) companion”Quran (Surah 43: Verse 36)

Conclusion:

Those who perform Zikr are Wise and are promised Success, Peace, Happiness, Mercy, Forgiveness and Great Rewards in this life and the next. All of which are valued as being positive important factors in one’s religious and worldly life.

Whilst those who do not engage in Zikr are classed as being heard hearted losers who are clearly in the error and in the group of Satan… and as such, they will be made to live a tight and narrow life, full of misery and woe, punished in this life as well as being risen blind in the next and who will be remorseful of all the time not spent in the Remembrance of Allah (swt).

So excatly how important is zikr? Basically put, for a Muslim, zikr is a matter of life and death:

“The likeness of the one who Remembers his Lord and the one
who does not Remember Him is like that between the living and the dead”
(Bukhari).