From the lecture..
2016-10-21_SB-10-86-55-59_-_Feeling_Need_to_Cultivate_Relationship_with_Devotees_-_Nanda_Dulal_Prabhu_ISKCON_Chowpatty

One time Srila Prabhupad had gone to one function where there was one photograph of Krsna in which He was single. There were no devotees around. Normally we don't find that. At least there is a cow. Even when they don't have Radharani next to Krsna, there is a cow, a peacock, a deer etc. If not anything there is a flute. But there was one photograph of Krsna where He was with no devotees.

Prabhupad said, This is the impersonalist's perception of Krsna that you rob Krsna, you separate Him from His devotees. You want Krsna and only Krsna.

Why does somebody want Krsna and only Krsna? Why would Prabhupad call it impersonalism?
In one sense as I mentioned the person becomes fully defined when He has association.

So there have been instances where I was working outside. I was not in the temple. One time I came to the Sunday Feast program and the deities were there. Most of the devotees whom I knew had gone on  a Yatra. It was karthik time and somehow I had not got leave. I can still remember that day. I was actually feeling lonely in the temple. The Sunday Feast was not the same Sunday Feast because all the devotees whom I knew whom I would meet, none of them were there and all of them had gone. So somehow I could not get the same experience. Only when later the next Sunday, I met the devotees then my experience of the temple became full. Personal experience is not complete unless it is a social experience. We cannot separate personalism from socialism. So, when we say that bhakti is personal, it doesn't mean that it's only with one person. Personalism means you develop a personal relationship with this person who is incomplete without his social circle.