VIJNANAMAYA kosha: Vijnana means knowing. It is the sheath of wisdom that is underneath the processing, thinking aspect of mind. It knows, decides, judges, and discriminates between this and that, between useful and not useful. It is also the level of ego consciousness, meaning the powerful wave of I-am-ness. This I-am-ness itself is a positive influence, but when it gets co-mingled with the memories, and is clouded over by the manas, it loses its positive strength. A major part of sadhana (spiritual practice) is gaining ever increasing access to this level of our being. It is the level that has the higher wisdom to seek Truth, to go within, in search of the eternal center of consciousness.