Raksha Bandhan~रक्षा बंधन - Tie rakhi without expectations
If the sister bears any expectation of a gift from the brother then she is deprived of spiritual benefit. When she does not have any expectations, she benefits from the blessing of the brother. Thus she benefits at a spiritual level.
How should the spiritual emotion of the sister be while tying a rakhi? Sri Krishna's finger was cut and blood was oozing out of it. He went to Draupadi. Without much thought she tore a piece of the pallu of the expensive zari saree she was wearing and tied it to His finger. On Raksha Bandhan day every sister should have the spiritual emotion like Draupadi.