Neptune square Lilith (orb 3.6°) creates concrete friction between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Here, Neptune in Libra in House 6 brings imagination, image, popularity, collective moods, and inspiration into House 6 (daily work, technique, and bodily discipline), with Libra style (relationship, balance, negotiation, and sense of form); Lilith in Capricorn in House 10 brings pure ideal, absolute demand, fascination, and refusal of compromise into House 10 (vocation, status, responsibility, and public image), with Capricorn style (structure, ambition, responsibility, and long construction).
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 Descendant (orb 1.3°) touches an angle; this aspect is easier to notice through direct relationships, partners, opponents, and the way others are met. House 6 (daily work, technique, and bodily discipline) 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.