Trnad api sunicena means

The māyā's attraction, the last snare of māyā is in this material conception of life, that so many identification, "I am this," "I am that," "I am that," "I am big man," "I am rich man," "I am prime minister," then so on, so on. When we are frustrated in all these attempts, then we try to become God. I am God. This is the last snare of māyā. But this Kṛṣṇa consciousness philosophy is just the opposite. What to speak of God? He is to think himself as the servant of the servant of the servant of the servant of the servant of God (CC Madhya 13.80).

So in one way it is very difficult. Therefore Caitanya Mahāprabhu instructs that who can become in Kṛṣṇa consciousness? Kīrtanīyaḥ sadā hariḥ (CC Adi 17.31). Who can chant Hare Kṛṣṇa very nicely? Tṛṇād api sunīcena. Tṛṇād api sunīcena means who thinks himself lower than the straw in the street, I am lower than. Humble, very humble. Tṛṇād api sunīcena taror api sahiṣṇunā. Tolerant more than the tree.

You know the trees are very much tolerant. They are giving you shelter, they are giving you shadow, and they are giving you protection from birds(?) and so many things, giving you fruits. You are taking woods, leaves, flowers, but the trees do not make any protest. They are standing silently. Therefore they are very tolerant. The example of toleration is trees. So Caitanya Mahāprabhu said that one has to become humbler than the grass or straw in the street, tolerant than the tree, and amāninā, and refusing all kinds of respectful addresses from others, but offering all respect to others. He's not prepared to accept any respect from others, but he is prepared to give all respect to others.