Equanimity reflects your mental stability, which can be affected by challenging events like intense training, frequent combat, or engaging in activities your character dislikes. When your morale rises, so does your equanimity, though more gradually. To boost equanimity directly, consider meditating, engaging in relaxed activities like charting or gathering, participating in enjoyable tasks based on your character's traits, spending time with faction members, helping others, enjoying good food, or achieving significant milestones like terraforming a planet.