In this world there are two types of Purushas. Two types of living entities. Two types of atmas. Atma we know is one but there are two types. This is advanced Lila. Chapter 2 dehino smi yata dehi..... Is preliminary study. This is advanced Gita study.

Two types of atmas - One is one who falls down known as conditioned souls and the other is kutastha ie infallible souls who are present amongst us. They are very rare. But they are present. Srila Prabhupad for example. He is not like an ordinary Personality. You know whatever it is, his compassion etc is outstanding. It's not easy to become selfless in this world.

Kutastha means those who are living in this world but are constantly thinking about Lord Krsna. They are not affected by the dualities of this world.

Apart from these two there is one more personality who is superior to all. And He is Paramatma.