Sun square Mars (orb 1.7°) creates concrete friction between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Sun in Scorpio in House 10 brings identity, ego, father figure, visibility, and direction into House 10 (vocation, status, responsibility, and public image), with Scorpio style (intensity, desire, crisis, secrecy, and invisible power); Mars in Aquarius in House 1 brings action, courage, competition, and effort into House 1 (presence, body, and the way experience is entered), with Aquarius style (independence, networks, distance, and collective change).
Concrete friction: this aspect creates visible tension between ego, father image, and action: will can feel attacked, blocked, or forced to prove strength, sometimes through a weak, absent, inhibiting, or castrating father image. Visible angle: Sun near the Midheaven (orb 5.3°) touches an angle; this aspect is easier to notice through social role, reputation, career, and public image. House 10 (vocation, status, responsibility, and public image) is in friction with House 1 (presence, body, and the way experience is entered); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.