दिक्पालादि-शिवलोकान्तर-कथनम्
Account of the Dikpālas and Intervening Realms toward Śiva’s Worlds
यत्पीत्वा योगिनः सिद्धा वज्रकाया महाबलाः / भवन्ति पुरुषाः प्राज्ञास्तदेव हि रसायनम्
yatpītvā yoginaḥ siddhā vajrakāyā mahābalāḥ / bhavanti puruṣāḥ prājñāstadeva hi rasāyanam
Having drunk it, perfected yogins become Siddhas—adamantine in body like vajra, mighty in strength, and wise in understanding; that indeed is the true rasāyana.