Text 13

tribhir guna-mayair bhavair
ebhih sarvam idam jagat
mohitam nabhijanati
mam ebhyah param avyayam

Translation

Deluded by the three modes [goodness, passion and ignorance], the whole world does not know Me, who am above the modes and inexhaustible.

Commentary by Srila Prabhupada

The whole world is enchanted by three modes of material nature. Those who are bewildered by these three modes cannot understand that transcendental to this material nature is the Supreme Lord, Krishna. 

Every living entity under the influence of material nature has a particular type of body and a particular type of psychological and biological activities accordingly. There are four classes of men functioning in the three material modes of nature. Those who are purely in the mode of goodness are called brahmanas. Those who are purely in the mode of passion are called kshatriyas. Those who are in the modes of both passion and ignorance are called vaishyas. Those who are completely in ignorance are called shudras. And those who are less than that are animals or animal life. However, these designations are not permanent. I may either be a brahmana, kshatriya. vaishya or whatever—in any case, this life is temporary. But although life is temporary and we do not know what we are going to be in the next life, by the spell of this illusory energy we consider ourselves in terms of this bodily conception of life, and we thus think that we are American, Indian, Russian, or brahmana. Hindu, Muslim, etc. And if we become entangled with the modes of material nature, then we forget the Supreme Personality of Godhead who is behind all these modes. So Lord Krishna says that living entities deluded by these three modes of nature do not understand that behind the material background is the Supreme Personality of Godhead. 

There are many different kinds of living entities—human beings, demigods, animals, etc.—and each and every one of them is under the influence of material nature, and all of them have forgotten the transcendent Personality of Godhead. Those who are in the modes of passion and ignorance, and even those who are in the mode of goodness, cannot go beyond the impersonal Brahman conception of the Absolute Truth. They are bewildered before the Supreme Lord in His personal feature, which possesses all beauty, opulence, knowledge, strength, fame and renunciation. When even those who are in goodness cannot understand, what hope is there for those in passion and ignorance? Krishna consciousness is transcendental to all these three modes of material nature, and those who are truly established in Krishna consciousness are actually liberated.

Commentary by Sri Visvanatha Cakravarti Thakur

"Then if you are all things, why do people not know you, the Supreme Lord?"

All the jivas born in the universe (sarvam idam jagat), being bewildered by the states such as sense and mind control in the mood of goodness, jubilation in the mode of passion, and lamentation in the mode of ignorance, stemming from the nature of the gunas, do not know me, who am superior to them, since I am beyond the gunas, and without change (avyayam).