“Sometimes mother Yashoda used to ask Krishna to bring her a wooden plank for sitting. Although the wooden plank was too heavy to be carried by a child, still somehow or other Krishna would bring it to His mother. Sometimes while worshiping Narayana, His father would ask Him to bring his wooden slippers, and Krishna, with great difficulty, would put the slippers on His head and bring them to His father. When He was asked to lift some heavy article and was unable to lift it, He would simply move His arms. In this way, daily, at every moment, He was the reservoir of all pleasure to His parents.” (Krishna, The Supreme Personality of Godhead, Vol 1, Ch 11)