This is a test of advancement in devotional service. As stated in Srimad-Bhagavatam (11.2.42), bhaktir paresanubhavo viraktir anyatra ca: in bhakti, a devotee's only attachment is Krsna; he no longer wants to maintain his attachments to many other things. Although Mayavadi philosophers are supposed to be very advanced on the path of liberation, we see that after some time they descend to politics and philanthropic activities. Many big sannyasis who were supposedly liberated and very advanced have come down again to materialistic activities, although they left this world as mithya (false). When a devotee develops in devotional service, however, he no longer has attachments to such philanthropic activities. He is simply inspired to serve the Lord, and he engages his entire life in such service. This is the difference between Vaisnava and Mayavadi philosophers. Devotional service, therefore, is practical, whereas Mayavada philosophy is merely mental speculation.