The Compendium of Caraka 5.5.36

5.5.36

raktapuṣpaṃ vanaṃ bhūmiṃ pāpakarmālayaṃ citām/
guhāndhakārasaṃbādhaṃ svapne yaḥ praviśatyapi//

A forest of red flowers, a site of wicked deeds, a funeral pyre,
a cave dense with darkness: he who enters these in a dream;