Consistent like a thermostat
My pastor used to talk about the thermostat and how it is not affected by its environment. Instead it affects its environment.
Taking this into perspective, I came up with some pretty awesome thoughts.
It is possible to be like a thermostat, in this case being happy and cheerful no matter what.
Smiling, no matter how bad my day was and being nice to people no matter how I feel.
Offering service to God, irrespective of my health, or any other commitments.
Being a thermostat for me means being stable and consistent in my good personality.
I know it is possible, so I aim for it.