I don't know what it is, but some musical constructions are put together with such a level of eloquence that for some unexplained reason, as the melody filters through our ear drums our bodies melt to the sweet sounds.
Various tracks in the past have proven to have this ability.... It's usually one of the last tracks you hear the DJ play near the end of his cool down set in the clubs, encourage people off the dance floor when fighting that eagerness to get their partners home, or alternatively it's the track that heats up the floor midway through the slow jam set, I know, you know what I mean. Either way, it has the same impact.
Undoubtedly, this the track of the moment.