Wuqiong (无穷), literally “limitlessness,”has various meanings: (1) spatial boundlessness; (2) temporal endlessness; and (3) infinity in number, size, and so forth. As they explored limitlessness, the ancients recognized the relativity of the concept in terms of time, space, and other particular things. A switch in perspective may transform limitlessness into limitedness, and vice versa.

Heaven is but the accumulation of limitless shimmers; when viewed in its limitlessness, the sun, the moon, the stars and the constellations of the zodiac are suspended in heaven, and all the other things are overlayed by it. (The Book of Rites)

The land of the south knows no limits yet does have limits. Today I depart for Yue, but I arrived there yesterday. (Zhuangzi)