why people die?

People die of some reasons we son't know.We all go somewhere else we don't know.We go to heaven,we go to hell and purgatory!I'm afraid to think of it.The Name of Heaven
Heaven (Anglo-Saxon heofon, O.S. hevan and himil, originally himin) corresponds to the Gothic himin-s. Both heaven and himil are formed from himin by a regular change of consonants: heaven, by changing m before n into v; and himil, by changing n of the unaccented ending into l. Some derive heaven from the root ham, "to cover" (cf. the Gothic ham-ôn and the German Hem-d). According to this derivation heaven would be conceived as the roof of the world. Others trace a connection between himin (heaven) and home; according to this view, which seems to be the more probable, heaven would be the abode of the GODHEAD. The Greek ouranos is probably derived from the root var, which also connotes the idea of covering. The Hebrew name for heaven is thought to be derived from a word meaning "on high"; accordingly, heaven would designate the upper region of the world.
In the Holy Bible the term heaven denotes, in the first place, the blue firmament, or the region of the clouds that pass along the sky. Gen., i, 20, speaks of the birds "under the firmament of heaven". In other passages it denotes the region of the stars that shine in the sky. Furthermore heaven is spoken of as the dwelling of GOD; for, although GOD is omnipresent, He manifests Himself in a special manner in the light and grandeur of the firmament. Heaven also is the abode of the angels; for they are constantly with GOD and see His face. With GOD in heaven are likewise the souls of the just.In Eph., iv, 8 sq., we are told that Christ conducted to heaven the patriarchs who had been in limbo (limbus patrum). Thus the term heaven has come to designate both the happiness and the abode of just in the next life. The present article treats as heaven in this sense only.
If you want to go in heaven you should first believe and love God with all of your heart.You should pray for everybody's salvation don't be selfosh don't live for yourself!If you don't want to be in heaven then go to hell!
What is hell?
"Each time he regained heartbeat and respiration, the patient screamed, "I am in hell!" He was terrified and pleaded with me to help him. I was scared to death. . . Then I noticed a genuinely alarmed look on his face. He had a terrified look worse than the expression seen in death! This patient had a grotesque grimace expressing sheer horror! His pupils were dilated, and he was perspiring and trembling — he looked as if his hair was "on end."Then still another strange thing happened. He said,"Don't you understand? I am in hell. . . Don't let me go back to hell!" . . .the man was serious, and it finally occurred to me that he was indeed in trouble. He was in a panic like I had never seen before."(Maurice Rawlings, Beyond Death's Door,(Thomas Nelson Inc., 1979) p. 3).
Oh..I'm afraid to go to hell!I don't want to be in eternal fire!YES! THERE IS A PLACE CALLED HELL! Out of the bottomless abyss of Heklafell, or rather out of Hell itself, rise melancholy cries and loud wailings, so that these can be heard for many miles around. . . there may be heard in the mountain fearful howlings, weeping and gnashing of teeth." (Haraldur Sigurdsson, Melting the Earth, The History of Ideas on Volcanic Eruptions, p. 73)
Some belives that hell is in earth.Earth has about 12000 celcius in its core!