It depends on whether you believe in heaven or not, obviously. Most people who believe in Heaven/Summerland/some other name for an afterlife believe that they will be much happier there than on earth. This cannot really be answered in complete assurance; nobody really knows what comes after life.
According to Christian belief, people in heaven can see people on earth. This belief is based on passages in the Bible that suggest a connection between heaven and earth, allowing those in heaven to have awareness of what is happening on earth.
According to some religious beliefs, people in heaven can see Earth.
No on earth we are imperfect but on heaven we are pure and good.
Heaven
They don't. That is just a saying. Heaven on Earth means something is so wonderful, it seems like heaven.
Heaven
There are many people that believe that Earth has no sorrow that heaven can't heal. These people definitely believe that Heaven is a good place where you want to go.
The Bible says God created Adam and Eve from the earth. This indicates that they were not spirits in heaven before they were on earth.
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According to Christian beliefs, people in heaven are believed to be able to see and know what is happening on Earth. This belief is based on the idea that those in heaven are in a state of spiritual awareness and connection that allows them to observe and understand events on Earth.
There are several ideas of who created the heaven and earth. Many people of religion believe a god created heaven and earth. Others believe the big bang theory.
We know because there are sinners on the earth still hurting people, so we are not in heaven yet.