• rajāṁsi — dust particles
  Plural of rajas — dust. The homely word for the universe's countable surface. The Bhāgavata loves earthy analogies; Bhagavān's qualities exceed even the earth's dust-count.
• pārthivāni — earthly
  From pṛthivī — earth. The adjective specifies dust-of-earth, not abstract particles. Earth itself is a Bhagavān-product (avara prakṛti, Gītā 7.4); Kṛṣṇa's qualities exceed His own creation's surface.
• uru-janmabhiḥ — in many lifetimes
  Compound: uru (many) + janmabhiḥ (with births). Even cosmic-scale effort, over many janmas, cannot enumerate Him. Gauḍīyas read this against impersonalist 'one-life-to-merger' claims — the bhakta has eternally many janmas, all in His service.
• guṇa — qualities
  Bhagavān's transcendental attributes — sat-cit-ānanda and the unlimited rasa-bearing qualities the Bhāgavatam catalogues. Gauḍīyas distinguish Bhagavān's guṇas (eternally transcendental) from prakṛti's guṇas (sattva-rajas-tamas, conditioning).
• karhicit — ever
  Particle — 'at any time.' The temporal locator of the impossibility. Not 'rarely' but 'never.' Vaiṣṇava theology's confidence: counting Bhagavān is not a difficult task, it is the kind of task that does not finish.

• UM SB 10-51-37 - Krishna%27s Qualities - 2024-04-22 Hillsborough
  Her Grace Urmila Mataji· 2024-04-22· English

• Where do you treat Kṛṣṇa as a finite subject of study?
• How does this verse shape the humility of your inquiry?

A man might one day count the dust-grains on the earth — but not Bhagavān's qualities. The image is the Bhāgavata's preferred form of infinity: not abstract zero or unbounded ocean, but the homely impossibility of counting dust on a road.