For the distressed user, vim provides words of wisdom.

:help!

Problem: Vim users are not always happy.

Solution: Make them happy.

Note: Requires patch version ≥7.4.1005

Vim knows The Answer:

:help 42

Vim will open the usr_42.txt document from the manual and show the following text:

What is the meaning of life, the universe and everything? 42

Douglas Adams, the only person who knew what this question really was about is now dead, unfortunately. So now you might wonder what the meaning of death is...

Check this out:

:help holy-grail

If you look for the help section of | or bar : :h bar you can see:

                                                    bar
|                       To screen column [count] in the current line.
                        exclusive motion.  Ceci n'est pas une pipe.

This is a reference to the painting La trahison des images by René Magritte.

Search for :h UserGettingBored

                        *UserGettingBored*
UserGettingBored        When the user presses the same key 42 times.
                        Just kidding! :-)

Instead of looking for the fork help, you can search for the spoon help:

:h spoon

                                                    fork spoon
For executing external commands fork()/exec() is used when possible, otherwise
system() is used, which is a bit slower.  The output of ":version" includes ...

Check this out:

:Ni!

Monty Python and the Holy Grail

:help map-modes

:nunmap can also be used outside of a monastery.