Mbh 14.27.3b

It has knowledge for its resting house, contentment for its water, and the Kshetrajna for its sun. Its end cannot be ascertained upwards, downwards, or horizontally. Seven females always dwell there, with faces downwards, possessed of effulgence, and endued with the cause of generations. They take up all the different tastes from all creatures, even as inconstancy sucks up truth. In that itself dwell, and from that emerge, the seven Rishis who are crowned with ascetic success, with those seven having Vasishtha for their foremost. Glory, effulgence, greatness, enlightenment, victory, perfection, and energy, these seven always follow this same like rays following the sun. Hills and mountains also exist there, collected together; and rivers and streams bearing waters in their course, waters that are born of Brahma. And there happens a confluence also of streams in the secluded spot for sacrifice. Thence those that are contented with their own souls proceed to the Grandsire. Those whose wishes have been reduced, whose wishes have been directed to excellent vows, and whose sins have been burnt off by penances, merging themselves in their souls, succeed in attaining to Brahman. Tranquillity is praised by those who are conversant with the forest of knowledge. Keeping that forest in view, they take birth so as not to lose courage. Even such is that sacred forest that is understood by Brahmanas, and understanding it, they live (in accordance with the ordinance), directed by the Kshetrajna.'"'"