उनदुनाया देहानि थाखाय जिरायनायनि मोनसे समारि थासारि जाय बेनि आखा - फाखा खामानिमावनायनि थाखाय गमामायैनो गोनां ।
Sleep is a periodic state of rest for the body which is absolutely essential for its efficient functioning .