What to do in Heaven
One of notable Japanese Christian thinkers, Kanzo Uchimura (1861-1930), once wrote about what believers would do in Heaven after their death.
The most important issue for a man is whether he is given eternal life or not. So, I think not many believers think what to do after they enter Heaven. Even Christ Jesus did not specify a life after one's death in Heaven.
To think about this issue, first of all, we have to believe survival of our spirits after biological death of ourselves. Some people think that no soul will survive after death; hence our minds and spirits will be lost forever with death of our bodies. Logically, they don't admit God and Heaven.
However, there is no scientific proof that our consciousness will be lost forever along with extinction of our biological life. Essentially, we cannot explain how our mind is generated and how our thinking is made possible in our head. There is a great gap between our existence as a spiritual entity and as a living thing. And it looks almost impossible for us to scientifically explain this supernatural phenomenon.
As some Islamic terrorists abuse the concept of Heaven to recruit a suicide bomber, we have to be careful in dealing with this topic. First we are not expected to enter Heaven by killing ourselves, but we are requested by God to live a righteous life to be eventually admitted to Heaven. However, it is important for us to consider existence of Heaven.
In the teaching of Christ, Heaven seems to be perceived by us as the Kingdom of God. Christ Jesus said that the Kingdom comes to us though we cannot see it. It must mean we will be in the Kingdom of God while we are living an ordinary life. And in our ordinary life what we cannot see is our mind and heart. It means it is our mind and heart that enters the Kingdom of God that must lead to Heaven.
I think that this material universe was created by God so as to make human beings live on the earth. The human beings were expected initially to live in accordance with the great intention and plan of God. He must want us to understand and praise Him while living on a planet, called the earth, at a corner of this great universe. Therefore, even after our death, we are expected to understand and praise God in Heaven.
Indeed, this material universe is built so exquisitely. The universe is governed with some physical constants:
| Constant | Symbol | Value |
| acceleration due to gravity | g | 9.8 m s-2 |
| atomic mass unit | amu, mu or u | 1.66 x10-27 kg |
| Avogadro's Number | N | 6.022 x 1023 mol-1 |
| Bohr radius | a0 | 0.529 x 10-10 m |
| Boltzmann constant | k | 1.38 x 10-23 J K-1 |
| electron charge to mass ratio | -e/me | -1.7588 x 1011 C kg-1 |
| electron classical radius | re | 2.818 x 10-15 m |
| electron mass energy (J) | mec2 | 8.187 x 10-14 J |
| electron mass energy (MeV) | mec2 | 0.511 MeV |
| electron rest mass | me | 9.109 x 10-31 kg |
| Faraday constant | F | 9.649 x 104 C mol-1 |
| fine-structure constant | α | 7.297 x 10-3 |
| gas constant | R | 8.314 J mol-1 K-1 |
| gravitational constant | G | 6.67 x 10-11 Nm2kg-2 |
| neutron mass energy (J) | mnc2 | 1.505 x 10-10 J |
| neutron mass energy (MeV) | mnc2 | 939.565 MeV |
| neutron rest mass | mn | 1.675 x 10-27 kg |
| neutron-electron mass ratio | mn/me | 1838.68 |
| neutron-proton mass ratio | mn/mp | 1.0014 |
| permeability of a vacuum | μ0 | 4π x 10-7 N A-2 |
| permittivity of a vacuum | ε0 | 8.854 x 10-12 F m-1 |
| Planck constant | h | 6.626 x 10-34 J s |
| proton mass energy (J) | mpc2 | 1.503 x 10-10 J |
| proton mass energy (MeV) | mpc2 | 938.272 MeV |
| proton rest mass | mp | 1.6726 x 10-27 kg |
| proton-electron mass ratio | mp/me | 1836.15 |
| Rydberg constant | r∞ | 1.0974 x 107 m-1 |
| speed of light in vacuum | C | 2.9979 x 108 m/s |
If these values were a little different, or unstable and variable, this material universe cannot be possible. There would be no fixed stars, no galaxies, no sun, no earth, and no living things. Everything in this universe can be in a chaos state. Even light might change its speed every moment, and gravity could change its value randomly. It is also so mysterious that there exists no conditions that would allow an electron to move freely in space without being bound to an atomic nucleus, thus, making impossible the formation of an atom. Without atoms, there would be no stars and no human beings in this universe.
The great order of the physical universe suggests that the universe was well planned and created by God. Then, we must be expected to live according to his will, so that our souls would advance to Heaven.
So, we are expected to understand and praise God in Heaven more than we are doing in this world.
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Joh 9:18 But the Jews did not believe concerning him, that he had been blind, and received his sight, until they called the parents of him that had received his sight.
Joh 9:19 And they asked them, saying, Is this your son, who ye say was born blind? how then doth he now see?
Joh 9:20 His parents answered them and said, We know that this is our son, and that he was born blind: