Lord made a Shivalingam out of sand and bathed the Lingam by inviting the water from Sapta samudra/ seven seas.
If you dwell the scriptures, the attribute of Bhagawan/ Supreme Lord means love... if the soul shows little love towards Lord, Lord reciprocates with thousand times of that... do not try to judge this display of love with logical/material calculations. We as human beings need a Spiritual touch to understand Spiritual stuff.
