Breakfast is generally recognized as the most important meal of the day. At breakfast time, it's been a while since you have put some calories in the body and you are preparing to start the most active part of your day. (If you work at night and sleep in the day, then supper is the most important meal of the day.) You need something in your stomach to nourish your activities.
It's very easy to get into a breakfast rut. I confess that every morning for about eighteen years, I had a bowl of oatmeal, two slices of buttered toast and a glass of milk for breakfast. Nothing really wrong with that, but we all know that variety is the spice of life. In my later years, I've come to look forward to breakfast as my favorite meal. I try to vary the menu and keep things interesting.