世
This Chinese character means world.
You can watch how to write this. - (「世」の書き順（筆順）動画 - 漢字書き順辞典)
There are 2 main ways to read this, "よ" or "せ".
When this is combined with other Chinese characters, this is often read as "せ".
For example, "世界 (せかい)" also means world.
Some people believe that after they die, they will go to heaven or hell.
Heaven is "天国 (てんごく)", and hell is "地獄 (じごく)" in Japanese.
"この世 (このよ)" means this world, and "あの世 (あのよ)" means that world.
It is said that Sanzu River flows between "この世" and "あの世".
After you die, you too might have to cross this river.
By Higashi-Mikawa Kyōjindō Shujin (東三河狂人堂主人)