"Sometimes you can hear them," whispered 20-year-old Avigail.
As she spoke, a huge boom echoed in the clear skies above us. This was the sound of the Iron Dome anti-missile aerial defence system, the pride of Israeli military technology, shooting down the rocket. It had been fired towards Jerusalem from the Gaza Strip by Hamas fighters.
Israelis consider Hamas to be terrorists, but some countries work with Hamas as a legitimate governing body.
Michelle and I were on a 10-day visit to Israel to visit family and friends, as well as a few tourist sites. But the tensions in the region meant normally packed attractions, such as the Church of the Holy Sepulchre and the Wailing Wall, were eerily quiet.
Hotel operators spoke of mass cancellations, aware of the toll the conflict takes on the entire region's economy.
Locals told us to take extra care and avoid certain neighbourhoods, but otherwise to carry on with life as normal.
Israel is a stunning, unique country. Walking the streets of Jerusalem's Old City, you encounter an astonishing array of people. Groups of Hasidic Jews brush shoulders with Greek Orthodox priests, while American millionaires buy orange juice from Palestinian teenagers.
Apart from the religious and historical significance of Jerusalem and its surrounds, the biggest city of Tel Aviv is a modern, bohemian centre whose citizens would fit in perfectly in Sydney's Bondi or California's Newport beaches.
In Tel Aviv, a couple of days after the first Jerusalem attack, we had to take cover three times in as many hours. Coming out when the danger had passed, we would search the sky for the tell-tale puffs of smoke that marked a rocket's destruction by Iron Dome. The first rocket of the morning was shot down right above us.
People who live in Israel are often noted for their blase attitude to this kind of danger, but this time things were different.
Some locals weren't leaving their homes and told us how scared they were. Many were upset at the terrible toll the fighting was taking on human life in the Gaza Strip as well.
I was discussing the conflict with a friend of mine, an Israeli with a young family in the northern city of Haifa. He'd served as an army medic in Gaza several years earlier, but rarely spoke about it.
Rockets had been landing near his home. I asked him how he and his family were coping. Wasn't he worried?
He just shrugged and said simply: "Of course. But this is life in Israel."
• The NZ Ministry of Foreign Affairs and Trade is currently advising that there is some risk to travellers' security in Israel due to indiscriminate rocket fire from Gaza, an on-going threat from terrorism and regional instabilities. It advises visitors to exercise caution and to follow any advice and instructions issued by the local authorities. For the latest MFAT advisories on Israel and the Occupied Palestinian Territories, see safetravel.govt.nz.