"Why are Kṛṣṇa students given spiritual name?"
So just to remember Kṛṣṇa. We . . . suppose . . . this boy is Gary. So I've given him the name of Gaurasundara. Gaurasundara is Lord Śrī Caitanya Mahāprabhu. So at least he chants . . . at least, when I ask him, "Gaurasundara," then I get the opportunity of chanting Lord's name. You see? Because our process is chanting. So if my students, my sons, my friends, they are all in God's name, then I chant always. This is the significance. I ask him, "Gaurasundara." I ask him, "Vāmanadeva." I ask him (her), "Govinda dāsī." That means I am chanting. Harer nāma iva kevalam (CC Adi 17.21).
My business is to chant the name of the Lord. So they are giving me chance to utter the name of the Lord.
And besides that, there is another affix: "dāsa." "Gaurasundara dāsa," "Vāmana dāsa." Dāsa means servant. He also remembers that "I am servant of Gaura, Lord Gaurāṅga," "I am servant of Lord Vāmana," "I am maidservant of Govinda." So . . . and friend. Sudāmā was a friend of Kṛṣṇa. So "I am the servant of Kṛṣṇa's friend, Sudāmā dāsa." So in this way our relationship with Kṛṣṇa we always remember. That remembrance is also self-realization process. Śravaṇaṁ kīrtanaṁ viṣṇoḥ smaraṇam (SB 7.5.23).
Smaraṇam, memorizing, by context. As soon as I utter "Sudāmā," I immediately remember, "Sudāmā was a friend of Kṛṣṇa," so I remember Kṛṣṇa. Reference to the context. So therefore this is offered, spiritual names.