Neptune square Lilith (orb 4.5°) creates concrete friction between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Here, Neptune in Libra in House 12 brings imagination, image, popularity, collective moods, and inspiration into House 12 (retreat, contemplation, long time, and possible confinement), with Libra style (relationship, balance, negotiation, and sense of form); Lilith in Cancer in House 10 brings pure ideal, absolute demand, fascination, and refusal of compromise into House 10 (vocation, status, responsibility, and public image), with Cancer style (memory, protection, belonging, and family sensitivity).
Concrete friction: this aspect puts Neptune (imagination, image, popularity, collective moods, and inspiration) 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: Neptune near the Rising sign (orb 2.4°) and Lilith near the Midheaven (orb 1.4°) touch angles; this aspect is easier to notice through first impression, body language, reflexes, and entry style; also through social role, reputation, career, and public image. House 12 (retreat, contemplation, long time, and possible confinement) is in friction with House 10 (vocation, status, responsibility, and public image); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.