What does Sun in the 1st house mean?
The 1st house is traditionally associated with identity, personal presence and how someone meets the world. With the Sun here, astrologers often emphasize the development and expression of a clear sense of self.
How can this placement express itself?
This placement is commonly read as a push toward visibility, initiative and acting from personal conviction. The useful question is not whether someone is 'meant to lead,' but where being seen and acting directly helps them grow.
What should you watch for?
The same emphasis can become over-identification with image, pride or the need to be recognized. A chart should be read as a whole rather than turning one placement into a personality verdict.
A useful reflection question
Where do I feel most alive when I act in my own name, and where might I be performing an identity instead of living it?
Why birth time matters
House placement depends on the birth time, place and house system. If your birth time is uncertain, your Sun house can change even though your Sun sign stays the same. Compare charts using the same settings and keep uncertainty visible.