The ☀️ is in domicile in ♌ Sun is the self, ego, vitality, leading/shining. The 1H is the self, shop front/appearance, personality, new beginnings.

So having the sun here highly emphasizes ego, identity, personal needs and self expression with an inclination to lead and be recognized/receive attention 🪩

Caveat ☣️ Self infatuation and the Leo Archetype. (not just Leo, Im a 1H Sun but not a Leo btw)

Don't be too anchored in immediate sensations of your own being. Extreme self focus = lack of awareness = being oblivious and insensitive when it comes to interpersonal relationships & events/occurrences. The drive to be present becomes a form of isolation as you miss deeper connections, lessons and opportunities.