Matsya Purana — Navagraha Sacrifice for Planetary Pacification and Prosperity
यस्मादशून्यं शयनं केशवस्य च सर्वदा शय्या ममाप्यशून्यास्तु दत्ता जन्मनि जन्मनि //
yasmādaśūnyaṃ śayanaṃ keśavasya ca sarvadā śayyā mamāpyaśūnyāstu dattā janmani janmani //
Wie das Lager Keśavas zu keiner Zeit leer bleibt, so möge auch mein Bett niemals unbesetzt sein; gewähre mir dies, Geburt um Geburt.
It does not address pralaya directly; it expresses a devotional boon—continuous auspiciousness and service connected with Keśava’s ever-occupied divine resting-place.
For a householder, an “unempty bed” implies sustained household welfare—companionship, continuity of family life, and stable domestic fortune—framed as a blessing obtained through Vaiṣṇava devotion and observance of vows.
Ritually, it reflects the symbolism of śayyā (bed/couch) as an auspicious object and a devotional offering motif; architecturally it is indirect—pointing to household auspiciousness rather than prescribing specific Vāstu measurements.