If we don't, then our heart has much greater tendency to develop disease. Yes, we have them whether we're aware of them or not. From the earliest days, we learn to love or not to love, or variations of that. Or hopefully, we're taught from an early age to trust in a higher power. We all have that.
Faith is our foundational power.
We call it the Rock of Faith. It's at the top of the head in the area called the cerebrum. Faith is our ability to proceed. It's our proceeding power, according to Charles Fillmore. It's how we can look beyond the physical into the spiritual.