Premanand Maharaj Ji
How do I treat relatives so that our give-and-take with them does not bind me?
See Bhagwan in relatives
When you honour a relative or guest as Bhagwan, it is not ordinary merit. It becomes service to Bhagwan. If you can hold this feeling toward every relative, guest or family member, you are cut free from karmic bondage.
Suppose it is your sister's husband: you saw God in him, touched his feet, gave charity to him, then you are doing it to your own Bhagwan.