In 2012, Ed and Dallas Nagata White shared a fiery, passionate kiss under the night rain, surrounded by fields of burning lava.

The couple -- a married duo of professional photographers based in Hawaii -- took the photo themselves, uploaded it to the Internet, and set the viral world ablaze, even winning a spot in National Geographic's Traveler Photo Contest.

Lava aside, the passion in the photograph, Dallas says, was a reflection of what their relationship was like when the photo was taken. Ed, an Army Sergeant at the time, had recently returned from Afghanistan.

"We were married fast and young -- it was a wartime wedding -- and we spent the first year of our marriage separated by deployment," Dallas told The Huffington Post.

Ironically, however, the kiss was " not the photo we set out to take," the couple recently told Seeker Stories, a YouTube channel that produces short documentaries.

The couple, along with a group of friends, had set out on a three-hour hike to shoot the lava field on Hawaii's Big Island at night, but their plans wilted when it started to rain.

While waiting for the rain to pass, the group started taking photos of themselves. For the first few shots, the couple posed in front of the strobe with their hands on their hips.

But on the last photo, Ed wanted to try something different.

"Without telling her," he explains in the clip, "I dipped her and kissed her, and the strobe went off and that picture came into existence."

Below, watch Ed and Dallas Nagata White reveal the truth behind their famed "Lava Kiss," proving that, sometimes, the story behind a photograph can make a single image infinitely more beautiful.