Is there anything in reality called negative energy or negative vibes from other people that can affect us?


Listen, in the absolute sense, no but in relative sense there is. You can feel those things but it is not a permanent thing. It is limited by time. 
Like smoke comes; smoke is not a permanent thing. Smoke you could find in somebody’s farm when they are burning the leaves then smoke comes. But it’s not going to be there forever, you are not going to live amidst smoke 24 hours. Smoke comes and it vanishes.
When fog comes, planes wait for that little time. Once the fog is clear the planes take off. You think planes are worried about the fog? No. It’s just matter of time.
Similarly some negative energy comes, you feel it, you feel upset, you feel something in the stomach, you feel something in the body but it’s only for a few minutes and it just goes away. See it goes even faster with a few pranayamas, bhastrika and mediation. All this will chase away those negative vibes. Why do you have to be worried about negative vibes? You should never be paranoid about negative vibes. Negative vibes are just like passing smoke or fog. 
You know of course in L.A. there is smog but people don’t leave L.A. The city is not deserted. Millions of people live there. It just comes for a while and then disappears. And negative vibes don’t even come as regularly as the smog in L.A. They just are there for a few minutes, at the most few hours and then they go. And you have the key to get rid of them. Excellent!
And one more thing is salt. Bathing in salt or putting salt in the bathtub can also take away any negativity. You know why people feel so happy in the ocean? Because there is salt in the water that cleanses the subtle and not just the gross. But when there is mantra chanting it’s even more powerful than the ozone or salt in water. 
That’s the strange thing in India. You will find the beaches are empty, nobody goes to the beach. Do you know this? Nobody goes. Even if you go to Bali, the Balinese people are not fond of the beach. They don’t go to. Only tourists go into beaches. Same in India, you will find local people do not go to beach. It’s not a favorite spot. Maybe in evening they may just take a walk. If you are in Chennai it gets very hot so you get little breeze. They are not fond of salt water, going into ocean. People seldom do because there is no inner craving, that it gives more than the inland. Are you getting what I’m saying?
You already get so much energy so your system doesn’t crave to go near the ocean or take a swim in the ocean to feel better because on the land mantra chanting has been happening for millennia, for ages. So it’s still vibrant. So prana is already high. It’s not especially high along the coast.