Valmiki Ramayana Aranya Kanda Sarga 30 Shloka 7

पांसुरूषितसर्वाङ्गः all your limbs covered with dust, स्रस्तन्यस्तभुजद्वयः with both the arms dropped and outstretched on the ground, दुर्लभाम् difficult, प्रमदामिव like a woman, गाम् the earth, समालिङ्ग्य after embracing, स्वप्स्यसे you will sleep.

With all your limbs covered with dust, both the arms dropped down and stretched out on the ground, you will sleep as though hugging the earth, like embracing a rare woman.