What was Old Major's dream mostly about?

Old Major's dream was mostly about an ideal lifestyle: he says, "It was a dream of the earth as it will be when Man has vanished," (32). It was also reminiscent of a time in his life when things were easier and most certainly happier, as is made evident by his sudden memory of the words to the long-forgotten song, "Beasts of England." This dream is the main reason for the persuasive speech and call to action he delivers to all the animals on the farm shortly before his death.

Orwell, George. Animal Farm. New York: Harcourt, Inc. 1946.