Because materialists cannot understand Krsna spiritually, they are advised to concentrate the mind on physical things and try to see how Krsna is manifested by physical representations.
Out of many thousands among men, one may endeavor for perfection, and of those who have achieved perfection, hardly one knows Me in truth.
What is night for all beings is the time of awakening for the self-controlled; and the time of awakening for all beings is night for the introspective sage.
