Box of Jhana

The Box of Jhana was a powerful Kinda healing device. It was capable of repairing severe mood disorders such as nervous breakdowns. It could also be used to deliver psychic messages. It was apparently intended primarily for use on females, as males exposed to it regressed to a childlike mental state. However, the Doctor was uneffected, possibly due to his regenerations or he was just balanced between insanity and childishness.

The Fifth Doctor speculated that it operated on a sonic level outside of normal hearing range, bringing the mind into harmony with the natural world. As a side effect, it often disrupted electrical circuits. (TV: Kinda)