Neptune square Lilith (orb 1°) creates concrete friction between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Neptune in Cancer in House 9 brings imagination, image, popularity, collective moods, and inspiration into House 9 (vision, belief, study, and wider horizons), with Cancer style (memory, protection, belonging, and family sensitivity); Lilith in Aries in House 6 brings pure ideal, absolute demand, fascination, and refusal of compromise into House 6 (daily work, technique, and bodily discipline), with Aries style (initiative, speed, confrontation, and direct action).
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 Midheaven (orb 5.9°) and Lilith near the Descendant (orb 0.4°) touch angles; this aspect is easier to notice through social role, reputation, career, and public image; also through direct relationships, partners, opponents, and the way others are met. House 9 (vision, belief, study, and wider horizons) is in friction with House 6 (daily work, technique, and bodily discipline); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.