If Qián has appeared in your reading, the book is naming a quality of force rather than an instruction. Six unbroken lines, top to bottom — the purest configuration in the entire sequence. What is at hand is not an opportunity to seize but a current already running.
Heaven, in classical Chinese cosmology, is not a place. It is the principle of unwearied motion: that which keeps going on, day and night, season after season, without external cause. When this principle shows up in a reading, the question being asked is usually one of capacity. Can you carry initiative for this long, at this pitch, without breaking?
What the book counsels is not haste but cadence. The judgment uses 元 (origin), 亨 (passage), 利 (fitness) and 貞 (uprightness) as a single chord, not a sequence. Take any one out and the others lose their footing. Begin from the source. Move with what wants to move. Fit the action to the moment. Keep the line straight.
Qián stands at the head of the sequence; everything else in the book is a variation on what happens when this energy meets a world that is not made of it. Its sixth line, 亢龍有悔 — the overreaching dragon has regret — is the standing warning. Force without limit is not the dao of heaven, it is its caricature.