अर्थे दश महामूलाः समासक्ता महाफलाः| महच्चार्थश्च हृदयं पर्यायैरुच्यते बुधैः ||३||
[Importance of Hridaya (heart)] Ten great vessels originate in the heart and are considered very important. The synonyms of the ‘heart' as given by the scholars are mahat, artha and hridaya.
षडङ्गमङ्गं विज्ञानमिन्द्रियाण्यर्थपञ्चकम्| आत्मा च सगुणश्चेतश्चिन्त्यं च हृदि संश्रितम् ||४||
Shadanga (six divisions of the body, i.e., four limbs, head, and torso), internal organs, consciousness, motor and sensory organs, five objects of sensory perceptions, and the soul (along with its attributes such as joy, etc.), mind and objects of the mind - are all located in the heart (i.e., are dependent on the functioning of the heart).