sa dharma-vin mūrdhny adadhāt sumaṅgalam
yad deva-devo giriśaś candra-maulir
dadhāra mūrdhnā parayā ca bhaktyā
Lord Śiva is known as Gaṅgā-dhara, or one who carries the water of the Ganges on his head. On Lord Śiva’s forehead is the emblem of the half-moon, yet to give supreme respect to the Supreme Personality of Godhead, Lord Śiva placed the water of the Ganges above this emblem. This example should be followed by everyone, or at least by every devotee, because Lord Śiva is one of the mahājanas. Similarly, Mahārāja Bali also later became a mahājana. One mahājana follows another mahājana, and by following the paramparā system of mahājana activities one can become advanced in spiritual consciousness. The water of the Ganges is sanctified because it emanates from the toe of Lord Viṣṇu. Bali Mahārāja washed the lotus feet of Vāmanadeva, and the water with which he did so became equal to the Ganges. Bali Mahārāja, who perfectly knew all religious principles, therefore took that water on his head, following in the footsteps of Lord Śiva.