What does floating dust mean in Buddhism?

Buddhism is not called floating dust, but dust, dust fatigue and dust.

Dust' is a Buddhist term, as opposed to' root'. "Dust" is the name of all external objects, and "root" is the floorboard of body senses. Buddhists can divide foreign objects into six categories. One is' color', which is opposite to' eye root'. Everything that the eyes can see is nothing more than "color". Incense is something opposite to the root of the nose. Everything that the nose can feel belongs to fragrance. Fourth, taste is the opposite of the root of the tongue. Everything the tongue can feel belongs to taste. Fifth, touch is something opposite to the root of the body. Everything the body can feel belongs to touch. Buddhism is the opposite of "the root of meaning". Everything that consciousness can achieve belongs to the "law". All sentient beings rely on their own body sense to combine with the "six dusts" of foreign objects. Six dusts are inseparable from each other at any time. So I am tired of six dusts and never rest, so Buddhists call it "dust fatigue".

The dust in the "dust world" and "dust land" in Buddhist language has a similar meaning to the dust we often say, which is immeasurable and similar to "constant sand".