This Life is temporary. 60,70,even 100 years at the most. Time flies by everyday. One thing everyone can agree on is that One day we will all Die. But the differences come on what will happen after Death or if anything will. From the Islamic view we believe this life is a Test to see who will enter Heaven and who will enter Hell. The way to Heaven is to Obey and worship God. By following God's rules and restrictions. Since God is PERFECT we should expect that the path to Him would be from a Perfect Source. That would be the Quran and God challenges any one to find any doubt in it or produce a single chapter like it.
"1 Alif. Lam. Mim.
2 This is the Scripture whereof there is no doubt, a guidance unto those who ward off (evil).
3 Who believe in the Unseen, and establish worship, and spend of that We have bestowed upon them;
4 And who believe in that which is revealed unto thee (Muhammad) and that which was revealed before thee, and are certain of the Hereafter.
5 These depend on guidance from their Lord. These are the successful." (Ch.2, Verses 1-5)
"Or do they say: "He (Muhammad SAW) has forged it?" Say: "Bring then a Soorah (chapter) like unto it, and call upon whomsoever you can, besides Allah, if you are truthful!" (Chapter #10, Verse #38)
As Muslims we beleive that after Death everybody who everlived will be Ressurrected Again For The Day Of Judgement. In which we will find out who is going to Heaven or HEll. As stated in the Quran.
"48 And they say: "When will this promise (i.e. Resurrection) be fulfilled, if you are truthful?"
49 They await only but a single Saihah (shout, etc.), which will seize them while they are disputing!
50 Then they will not be able to make bequest, nor they will return to their family.
51 And the Trumpet will be blown (i.e. the second blowing) and behold! From the graves they will come out quickly to their Lord.
52 They will say: "Woe to us! Who has raised us up from our place of sleep." (It will be said to them): "This is what the Most Beneficent (Allah) had promised, and the Messengers spoke truth!"
53 It will be but a single Saihah (shout, etc.), so behold! They will all be brought up before Us!
54 This Day (Day of Resurrection), none will be wronged in anything, nor will you be requited anything except that which you used to do.
55 Verily, the dwellers of the Paradise, that Day, will be busy in joyful things.
56 They and their wives will be in pleasant shade, reclining on thrones.
57 They will have therein fruits (of all kinds) and all that they ask for.
58 (It will be said to them): Salamun (peace be on you), a Word from the Lord (Allah), Most Merciful.
59 (It will be said): "And O you Al-Mujrimoon (criminals, polytheists, sinners, disbelievers in the Islamic Monotheism, wicked evil ones, etc.)! Get you apart this Day (from the believers).
60 Did I not ordain for you, O Children of Adam, that you should not worship Shaitan (Satan). Verily, he is a plain enemy to you.
61 And that you should worship Me (Alone Islamic Monotheism, and set up not rivals, associate-gods with Me). That is a Straight Path.
62 And indeed he (Satan) did lead astray a great multitude of you. Did you not, then, understand?
63 This is Hell which you were promised!
64 Burn therein this Day, for that you used to disbelieve.
65 This Day, We shall seal up their mouths, and their hands will speak to Us, and their legs will bear witness to what they used to earn. (It is said that ones left thigh will be the first to bear the witness). (Tafsir At-Tabaree, Vol. 22, Page 24)
66 And if it had been Our Will, We would surely have wiped out (blinded) their eyes, so that they would struggle for the Path, how then would they see?