रामायण - सुन्दरकाण्ड - मनः

मनो हि हेतुः सर्वेषामिन्द्रियाणां प्रवर्तने ।
शुभाशुभास्ववस्थासु तच्च मे सुव्यवस्थितम् ॥

- रामायण, सुन्दरकाण्ड

mano hi hetoH sarveShAm indriyANAm pravartane ।
shubha ashubhAsu avasthAsu taccha me suvyavasthitam ॥

- rAmAyaNa, sundara kANDa

Mind is the driver of all senses. It is the cause of all good and bad. When my mind is under my control, why should I worry? (as told by Hanumantha on seeing all the ladies in Ravana's harem in Lanka)

- Ramayana, Sundara Kaanda