Shravana carried his parents on his shoulder.
Explanation: This statement has been taken from the essay 'पुस्तकस्य आत्मवृत्तान्तः' which is the autobiography of a book. While telling about its autobiography, the book gives example of Shravana also who carried his old parents on his shoulder for pilgrimage. In the similar manner, children also keep their books in their school- bag with great affection and carry it to school. The trip in the school-bag to school and back to home gives a great pleasure to books. This indicates children's love and affection for books.
Thus, the above-mentioned statement indicates the importance of books and how they are useful to the students.