Śyāmasundara: Swamiji? I have obtained today a large piece of...
Prabhupāda: Stone? Flat.
Śyāmasundara: Yes. Marble. For Kṛṣṇa comes home,(?) back of Kṛṣṇa.(?)
Prabhupāda: Very nice. So it is not so high. How much it is, height?
Śyāmasundara: This one is only for practice. And then I have obtained...
Prabhupāda: Oh, oh.
Śyāmasundara: ...a large one. It is very difficult stone because it's like glass almost. I have to practice. And later a larger one.
Prabhupāda: So first of all you... This is called, what is called, test stone.
Śyāmasundara: Yes.
Prabhupāda: Praṣṭhipāta, it is called in Bengali. They test gold. By rubbing on the stone, they can understand what is the value of the gold. In India they are simply keeping a stone like this, and you take something golden, and they will at once test by simply rubbing on it. So experienced. By the glazing of the gold they will understand what is the value of this. It is experience. But this stone is used.