This is the meaning of life according to Monthy Python:
Well, it's nothing very special...
Try and be nice to people,
Avoid eating fat,
Read a good book every now and then,
Get some walking in,
And try to live together in peace and harmony with people
of all creeds and nations.
This was explained by Michael Palin (wearing a very smart dress) at the end of the movie.
That really is about all there is to it. Some people go through their whole lives without figuring this out.