In plain words
He drank it. Through that, Śaṅkara became an Avatāra-puruṣa. He became all-knowing. Before he was even thirty-two he proclaimed everything to the world, the four Vedas and the six Śāstras. He went on proclaiming the doctrine of Advaita in the world. What was the reason? By drinking that Mother's milk he became so fortunate. So a mother is a form so sweet. A mother's Prema is, after all, a worldly Prema. But to her we must offer only worldly Prema. The heart, though, is for God alone and for no one else. His very name is the Dweller in the heart. Mother's name is the dweller in the house, father's name is the dweller in the house. The guru is the dweller in the āśrama. God is the Dweller in the heart. No one but God has the right to dwell in the heart. So keep God in your heart. In the world, look after your mother. Give your mother honour. Serve at her feet. To be happy here, the learning that brings gold. To be happy hereafter, Brahmavidyā. This is what they called ‘Dil me Rām, hāth me kām’. Serve in the way of the body. Install Divinity within your heart. If this is there, you can achieve any number of things. So we must look after our mother with Prema, and attain God through the principle of Prema itself.