योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-63, verse-25

यथा ते स्वप्नपुरुषाः सत्यमात्मन्यथाऽपरे ।
तथापि स्वप्नपुरुषाः सत्यमेव तथैव ते ॥ २५ ॥

yathā te svapnapuruṣāḥ satyamātmanyathā'pare ,
tathāpi svapnapuruṣāḥ satyameva tathaiva te 25

25. As those dreaming men think of their reality, so do others think of themselves likewise; and so art thou as real as any one of them.