Regard the heart as a vast field. Use the mind as a plough. Treat the gunas (qualities) as bullocks. Use the intelligence (Viveka) as a whip. With these aids, cultivate the field of your heart. What is the crop that is to be grown in it? Sathya, Dharma, Santhi and Prema are the crops. Bhakthi is the rain, meditation is the manure, Brahmananda is the crop.