The concept of 'Practical Optimism' is the central focus of the two podcast episodes provided. Practical Optimism is defined as a learned set of strategies and skills that can help individuals manage challenges and adversity in a productive and resilient manner.

The episodes discuss how Practical Optimism differs from toxic positivity or pessimism, and how it can be cultivated through practices like having a clear purpose, processing emotions, problem-solving, and developing self-compassion. The benefits of Practical Optimism, such as improved mental health and resilience, are also explored.

For example, in The Power of Practical Optimism, the hosts discuss the definition of Practical Optimism and its various components. In How to Be More Resilient, Transform Your Health & Find Your Purpose Using the Power of Optimism with Dr. Sue Varma, the guest provides more detailed insights into her 'eight pillars' framework for achieving exceptional mental wellness through Practical Optimism.