Christina Feldman wrote an article that helps us explore the practice of equanimity in the ups and downs we experience in life. The article includes a brief description of what are known as the eight worldly winds, pairs of opposites that we all encounter in life. You can find her article here: The Worldly Winds
An article by Narayan Liebenson has a more in-depth discussion of the eight worldly winds and ways to understand them and practice with them. You can find that article here: Cultivating Equanimity