Heaven should be fun, not a penence.
The situation of Paradise or the Kingdom of Heavens
Paradise is called "Heaven" by Christians; and in fact Paradise is in heaven, as proved by the late interpreter dedicating that from the ayat of the Quran.
"God - be exalted - said in the Quran 13: 35
مَّثَلُالْجَنَّةِالَّتِي وُعِدَالْمُتَّقُونَتَجْرِيمِنتَحْتِهَاالأَنْهَارُأُكُلُهَادَآئِمٌوِظِلُّهَا
The explanation:
(The likeness of the Garden which those who safeguard [themselves against God's punishment] are promised,
beneath [the trees of] which rivers flow;
its food is perpetual,
and [likewise] its shade!)
Here, (its food is perpetual, and [likewise] its shade) is an indication that it is not on any planet; for if Paradise were an earth like our Earth, then the shadow or the shade would be transmitting upon it, and it would not be continuous or perpetual.
Suppose that would be at the time of the Earth's standstill from its axial rotation, and the shade on it would then be continuous, uninterrupted, then it would be a hell, not a prosperity and paradise: that would be in the side facing the sun; while the side which is not facing the sun, it will be a bitterly cold place; because of the severity of coldness there.
Therefore, Paradise cannot be on any earth, but it is in heaven."
Moreover, it is confirmed that Paradise is in heaven:
"God - be exalted - said in the Quran 68: 34
إِنَّلِلْمُتَّقِينَعِندَرَبِّهِمْجَنَّاتِالنَّعِيمِ
The explanation:
(Surely, for those who ward off [God's punishment], with their Lord [in the spiritual heavens] there will be gardens of prosperity.)
It means: in His neighborhood in the heaven."
In fact its position is in the region of Moon:
"The position of the Paradises or Gardens is in heaven, in the region of the Moon, but the Paradises are of wide extension, so that the Moon, in relation to them, is like a drop in relation to the sea</SPAN>."
"God - be exalted - said in the Quran 71: 15-16
أَلَمْتَرَوْاكَيْفَخَلَقَاللَّهُسَبْعَسَمَاوَاتٍطِبَاقًا . وَجَعَلَالْقَمَرَفِيهِنَّنُورًاوَجَعَلَالشَّمْسَسِرَاجًا
The explanation:
(Have you not regarded how God created seven [ethereal] heavens, one above another,'
'And made the moon [as] a light therein, and made the sun [as] a lamp?')"
The kingdom of heavens (or Paradise or the ethereal heavens) is situated in the outer space, and it is very extensive: its extent is like the extent of the planets of the solar system and the space which they occupy.
"God - be exalted - said in the Quran 3: 133
وَسَارِعُواْإِلَىمَغْفِرَةٍمِّنرَّبِّكُمْوَجَنَّةٍعَرْضُهَاالسَّمَاوَاتُوَالأَرْضُأُعِدَّتْلِلْمُتَّقِينَ
The explanation:
([Vie with one another] and hurry to [have] forgiveness from your Lord [by giving alms] and [to enter] a Garden, whose extent is [like the extent] of the heavens and the earth, prepared for those who ward off [the disobedience of God.] )
The meaning: Its extent is like the vast extent of the planets, that are widely scattered in the space."