The chapter states a pair of relations and then illustrates them with one image. The heavy is the root of the light. Stillness is the ruler of restlessness. Then: the sage travels all day without leaving the baggage cart.
The image is military and administrative rather than contemplative. A column on the march has a baggage train, slow and heavy, carrying everything the column needs to still be an army when it arrives. The temptation, always, is to leave it behind and move faster. The chapter says the sage does not, and the point is not patience but dependence: speed that outruns its supply is not speed, it is the beginning of a rout.
The next line adds a second temptation. Though there are splendid sights, he stays calm and detached. Having established that the heavy is the root of the light, the chapter names the two things that separate a person from their root, which are haste and attraction, and neither is a vice in the moral sense. Both are simply ways of being pulled off the base you are standing on.
The whole chapter is built on a single relation, that a light thing is only stable if a heavy thing is under it, and everything else in it is application. Chapter forty-five states the companion rule about temperature, that moving about overcomes cold and keeping still overcomes heat, and concludes in almost the same words that clear stillness is the standard of the world.