This is the business of acarya, to spread bhakti cult. Acaryam mam vijaniyat navamanyeta karhicit [SB 11.17.27]. It is said by the Lord that "You should accept the acarya…" Acarya means one who transmits bhakti cult. Bhakti-samsanat, spreading, gosthyanandi.

One who is not spreading — he is cultivating Krsna consciousness for his personal benefit in a secluded place, sitting and chanting — that is also nice, but he's not acarya. Acarya means he must spread. Gosthyanandi. Bhajananandi, gosthyanandi. So generally, gosthyanandi means one who wants to increase the number of devotees. He's called gosthyanandi. And one who is self-satisfied, that "Let me do my own duty," he is called bhajananandi.

So my Guru Maharaja, Bhaktisiddhanta Sarasvati Thakura, he was gosthyanandi. He wanted to increase the number of devotees. And the more you increase the number of devotees, the more you become very much recognized by Krsna. It is Krsna's business. Krsna personally comes as He is, Krsna, to spread this bhakti cult. Man-mana bhava mad-bhakto mad-yaji mam namaskuru [Bg. 18.65]. Sarva-dharman parityajya mam ekam saranam vraja [Bg. 18.66]. He's canvassing personally.

paritranaya sadhunam

vinasaya ca duskrtam

dharma-samsthapanarthaya

sambhavami yuge yuge

[Bg. 4.8]

So same thing entrusted to another devotee, and who spreads, he's acarya.

(Srila Prabhupada — April 6, 1975, Mayapur)