Negative entity psychic greetings

[jafar]

I wanted to ask you what would be a good method to help me ensure that this does not happen again? How to manage this effectively, how to protect myself from it?

Noise on ear can be anything, might not necessarily be a 'greeting' from the negative.

Having said that, in terms of 'spiritual warfare' with the negs, if it come down to this, those who have the heart chakra opened is more powerful than those who decided to skipped it.

Thus my advice is to first don't feel afraid, that's what the negs trying to do with you, to make you feel afraid of their presence.
And as other member has suggested, always open your heart chakra through emotion of love and compassion. Heart chakra is a very powerful chakra, the driver of creation.
Leveraging the heart chakra, anything that you imagined will be manifested, in the 'spiritual realm', including any weapon that you think you will need to fight / disable the negs, if you choose to fight / disabling them.