I discovered this incense straight from India when I started college but somehow managed to let it wander away, along with a host of other things. Rarely was I at my house without a stick of this burning, and while reading or writing it became an essential. Only recently have I reawakened it's place. There is something about Sai Baba Nag Champa that is more than just a smell, it's smoke seems to drift its way into your being.
First of all, it is just relaxing. As I said, it's great while reading, studying, or doing anything requiring acute mental ability. Or even for meditating. It's very earthy while not being overpowering or offensive. It's rather reflective in it's own right, in very much a spiritual, not necessarily religious, sense. The thing I like most about it is that it seems to take your mind somewhere, and it seems to be a very specific, familiar unknown. It's as if you are participating in something beyond yourself, and you want to participate yet not break the mystery, all the while being so simple, which very well may be the key.