CHĀNDOGYA UPANISHAD · 8.2.3

अथ यदि भ्रातृलोककामो भवति ।
संकल्पाद् एवास्य भ्रातरः समुत्तिष्ठन्ति ।
तेन भ्रातृलोकेन संपन्नो महीयते ॥

atha yadi bhrātṛlokakāmo bhavati ।
saṃkalpād evāsya bhrātaraḥ samuttiṣṭhanti ।
tena bhrātṛlokena saṃpanno mahīyate ॥

'And he who desires the world of the brothers, by his mere will the brothers come to receive him, and having obtained the world of the brothers, he is happy.

F. Max Müller · The Upanishads, Sacred Books of the East 1 (1879)