Part of these "Thoughts for Today" is to remind us of our mission. The principle of using material things in the devotional service of the Lord and thereby purifying them has not only been underscored by Rupa Gosvami, but is expounded in the Bhagavad-gita and the Srimad Bhagavatam. Bhagavad-gita As It Is (3.9) and Srimad Bhagavatam (1.15.34) both establish this principle.