Rigveda 4.7.6
तं शश्व॑तीषु मा॒तृषु॒ वन॒ आ वी॒तमश्रि॑तम् ।चि॒त्रं सन्तं॒ गुहा॑ हि॒तं सु॒वेदं॑ कूचिद॒र्थिन॑म्॥
taṃ śaśvatīṣu mātṛṣu vana ā vītamaśritam |citraṃ santaṃ guhā hitaṃ suvedaṃ kūcidarthinam ||
Our plain-language meaning of this verse is waiting for scholar review.