The Sun is visible, uncomplicated energy — the arcana of being seen and being glad about it. Where it appears, things become clear and people are drawn in without being recruited. It gives resilience and a genuine capacity for happiness. The shadow is a need for the light to stay on you, and exhaustion when you keep shining past your own limits.
On the personality point the Sun makes you visible without trying. On the money line it points to income tied to being seen — reputation, presence, being the face of the thing. At the centre it produces resilience and a quiet dependence on the light staying on.
Take one period where nobody is watching and see what you still want to do. What survives that test is the part of this energy that will not exhaust you.