Gurudev, during a few festivals, we give all kinds of grains as donation. Why is it said that one should not give salt as donation along with the grains?

Gurudev Sri Sri - This is just a practice. It has not been mentioned in the shastras. Do not worry about it. There is no dish that does not have salt in it. Everything contains salt in some quantity. Everything that is offered during a ritual contains some salt in it. Coconut water contains salt. It is said that even fruits contain salt. The air that you breathe has salt in it. There is just a saying to not hand over oil, salt, Chilli (green/red peppers) and water directly to someone. That is why they used to place it on the floor. There is a belief that the vibrations of one person go to the other person if they hand over these items directly. In case you feel affected by the vibrations of another person, sing bhajans or chant Om Nama Shivaya and do pranayama. All the negative effects will go away.