We can only correct a Vaishnava, if he is surrendered to us, otherwise, we may incur a Vaishnava Aparadha or we may get into a Vaisanava Aparadha.
The line is if he is surrendered, if he is ready to listen to us, ready to obey us.
‘Tad viddhi praṇipātena paripraśnena sevayā’ BG 4.34
First is ‘praṇipātena’, Is he surrendered to us? Is he going to listen to us? If not, then leave it to his Guru, to his superior and to his Krishna, Maya and everybody else.
Everybody has a different level. If we are on the same level or if somebody is surrendered to us, then we can instruct him, he will hear, he will listen and there would not be any aparadha but if he is not going to listen to us and if he is thinking that he is above us (he may/may not be), equal to us and we try to instruct him, then Vaishnava Aparadha may happen. Also because he is dear to Krishna, if he is a devotee and we are also dear to Krishna and both of us start fighting, then Krishna will never like it, Krishna doesn’t appreciate this.
If someone is ready to listen that means he is surrendered to us and we can instruct him but if he is not surrendered and doesn’t want to listen to us, then we should not get into any offence. Read More Teachings