Since the human brain can only focus on ONE thing in any given moment, the more you integrate passion and reason into ONE thing, the more brain time you free up to focus on integrating more passion and reason. The more you practice this, the better you get at recognizing opportunities for more integration and alignment. This is how you create efficiencies in your life and for your system. You will develop faster as an individual when you actively pursue your passions through a filter of reason.
What are examples, like the cat calendar, that exist in your environment? Did you identify something that already had your passion and reason integrated, or have you incorporated the two yourself into something you use daily?