They (Krsna and Balarama) arrange to reach it (the milk and curd hanging from the ceiling) by piling up various planks and turning upside down the mortar for grinding spices. Being quite aware of the contents of a pot, They pick holes in it - SB 10.8.30

Expressions researched:
"They arrange to reach it by piling up various planks and turning upside down the mortar for grinding spices. Being quite aware of the contents of a pot, They pick holes in it"

Srimad-Bhagavatam

SB Canto 10.1 to 10.13

When the milk and curd are kept high on a swing hanging from the ceiling and Kṛṣṇa and Balarāma cannot reach it, They arrange to reach it by piling up various planks and turning upside down the mortar for grinding spices. Being quite aware of the contents of a pot, They pick holes in it.

SB 10.8.30, Translation and Purport

"When the milk and curd are kept high on a swing hanging from the ceiling and Kṛṣṇa and Balarāma cannot reach it, They arrange to reach it by piling up various planks and turning upside down the mortar for grinding spices. Being quite aware of the contents of a pot, They pick holes in it. While the elderly gopīs go about their household affairs, Kṛṣṇa and Balarāma sometimes go into a dark room, brightening the place with the valuable jewels and ornaments on Their bodies and taking advantage of this light by stealing."

Formerly, in every household, yogurt and butter were kept for use in emergencies. But Kṛṣṇa and Balarāma would pile up planks so that They could reach the pots and would then pick holes in the pots with Their hands so that the contents would leak out and They could drink it. This was another means for stealing butter and milk. When the butter and milk were kept in a dark room, Kṛṣṇa and Balarāma would go there and make the place bright with the valuable jewels on Their bodies. On the whole, Kṛṣṇa and Balarāma engaged in stealing butter and milk from the neighborhood houses in many ways.