The spiritual world, which consists of three fourths of the Lord’s energy, is situated beyond this material world, and it is especially meant for those who will never be reborn. Others, who are attached to family life and who do not strictly follow celibacy vows, must live within the three material worlds.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
सृती विचक्रमे विष्वङ् साशनानशने उभे । यदविद्या च विद्या च पुरुषस्तूभयाश्रयः
sṛtī vicakrame viṣvaṅ sāśanānaśane ubhe | yadavidyā ca vidyā ca puruṣastūbhayāśrayaḥ
SB 2.6.20