Moon square Mars (orb 1.8°) creates concrete friction between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Moon in Capricorn in House 6 brings personal dream, play, inner child, childhood imprint, mother figure, mother image, optimism, and inner rhythm into House 6 (daily work, technique, and bodily discipline), with Capricorn style (structure, ambition, responsibility, and long construction); Mars in Aries in House 9 brings action, courage, competition, and effort into House 9 (vision, belief, study, and wider horizons), with Aries style (initiative, speed, confrontation, and direct action).
Concrete friction: this aspect creates live tension between the inner child, mother image, and Mars: vulnerability, protection, or the need for safety can turn into anger, inhibition, or defense, sometimes through a weak, inhibiting, or castrating mother image. House 6 (daily work, technique, and bodily discipline) is in friction with House 9 (vision, belief, study, and wider horizons); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.