CHĀNDOGYA UPANISHAD · 8.2.2

अथ यदि मातृलोककामो भवति ।
संकल्पाद् एवास्य मातरः समुत्तिष्ठन्ति ।
तेन मातृलोकेन संपन्नो महीयते ॥

atha yadi mātṛlokakāmo bhavati ।
saṃkalpād evāsya mātaraḥ samuttiṣṭhanti ।
tena mātṛlokena saṃpanno mahīyate ॥

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

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