What is the law of karma about?

The Law of Karma performs much of its work on the Astral, for there, the sole material is plastic and non-resistant, the coarse sheaths of the body being absent.

And this law is exact and unfailing in its operations—

It always brings the seed to fruition, and each seed brings forth only its own appropriate fruit—

Karma—all that total of a soul,

Which is the thing it did, the thoughts it had,

The 'Self' it wove—with woof of viewless time,

Crossed on the warp invisible of acts—

Before beginning, and without an end,

As space eternal and as surety sure—

Is fixed a Power divine, which moves to good—

Only its laws endure.

That which ye sow, ye reap.

See yonder fields!

The sesamum was sesamum, the corn was corn.

The Silence and the Darkness knew!

So is a man's fate born.

He cometh, reaper of the things he sowed,

Sesamum, corn, so much cast in past birth—

And so much weed and poison stuff, which mar

Him and the aching earth.

If he labour rightly, rooting these,

And planting wholesome seedlings where they grew,

Fruitful and fair and clean the ground shall be,

And rich the harvest due.