Valmiki Ramayana 3.10.5
वसन्तः काल कालेषु वने मूल फल अशनाः ।न लभन्ते सुखम् भीरु राक्षसैः क्रूर कर्मभिः॥
vasantaḥ kāla kāleṣu vane mūla phala aśanāḥ |na labhante sukham bhīru rākṣasaiḥ krūra karmabhiḥ ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book