比之无首。凶。
Shou 首: head; chief, leader; main points, essentials; the first, the highest. Also ‘towards (direction)’ and loan for dao 道, ‘road, path’ (漢語大詞典). Without a leader or direction, without the essentials to focus on, the new bond will be inauspicious.
Bonding without a head(-ing).
Inauspicious.