(7) Yoga means Union.
We may now consider what Yoga really is. Let us go for a moment into the nature of consciousness with the tail of an eye on such sciences as mathematics, biology, and chemistry.
In mathematics the expression 'a' plus 'b' plus 'c' is a triviality. Write 'a' plus 'b' plus 'c' equals 0, and you obtain an equation from which the most glorious truths may be developed.
In biology the cell divides endlessly, but never becomes anything different; but if we unite cells of opposite qualities, male and female, we lay the foundations of a structure whose summit is unattainably fixed in the heavens of imagination.
Similar facts occur in chemistry. The atom by itself has few constant qualities, none of them particulary significant; but as soon as an element combines with the object of its hunger we get not only the ecstatic production of light, heat, and so forth, but a more complex structure having few or none of the qualities of its elements, but ca