(Instrument of Awareness)
The spiritual instrument of awareness (yantra) of the cosmic and microcosmic (individual) evolution.
The human psycho-somatic instrument is in-built each and every individual.
Within all of us exists this beautiful instrument which is described in the Bible as the "Tree of Life". Unless and until we achieve a state called Self-Realization (which Christ called as the Second Birth), we cannot understand this subtle system.