First, you learn effective self-defense techniques. Every technique you learn is in response to a street-type attack.
Second, you are also taught the art by being exposed to the theory and mechanics behind each move. Budoshin Ju-Jitsu is a traditional Japanese style of jujitsu, the parent art of aikido, judo, and some styles of karate.
Because of such a wide ranging ability to cause pain and or injury at the practitioners discretion, you are also expected to accept a very strong philosophy of non-violence: that a physical confrontation should be avoided whenever possible and that Ju-Jitsu techniques should be used only to the extent necessary to remove yourself from the immediate situation and protect yourself from further harm