A 'S dhana' is an instrument that leads to a particular goal. In Tantra, it is a technical term denoting worship or spiritual practice. Tantra S dhana is a collection of related instructional papers designed to aid the aspirant through a foundation S dhana. Some say effective S dhana requires an initiation (d ksh ) from a qualified guru. This book is designed to act as a taster and to provide a short body of work suitable for the period of about one lunar month. In addition, the author had added several useful appendices - including the previously unpublished Tantrik Knuckle Bone Oracle.