Uranus square Lilith (orb 1.3°) creates concrete friction between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Uranus in Scorpio in House 4 brings disruption, independence, and change into House 4 (roots, privacy, and inner foundation), with Scorpio style (intensity, desire, crisis, secrecy, and invisible power); Lilith in Leo in House 12 brings pure ideal, absolute demand, fascination, and refusal of compromise into House 12 (retreat, contemplation, long time, and possible confinement), with Leo style (presence, pride, creation, and the wish to be seen).
Concrete friction: this aspect puts Uranus (disruption, independence, and change) and Lilith (pure ideal, absolute demand, fascination, and refusal of compromise) into repeated friction: one can interrupt, inhibit, or provoke the other in concrete situations. Visible angle: Lilith near the Rising sign (orb 0.2°) touches an angle; this aspect is easier to notice through first impression, body language, reflexes, and entry style. House 4 (roots, privacy, and inner foundation) is in friction with House 12 (retreat, contemplation, long time, and possible confinement); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.