Suicide is a huge folly, because it places the committer of it in an infinitely worse position than he was in under the conditions from which he fool… - William Quan Judge

Applied to man's moral life it is the law of ethical causation, justice, reward and punishment; the cause for birth and rebirth, yet equally the means for escape from incarnation. Viewed from another point it is merely effect flowing from cause, action and reaction, exact result for every thought and act. It is act and the result of act; for the word's literal meaning is action. Theosophy views the Universe as an intelligent whole, hence every motion in the Universe is an action of that whole leading to results, which themselves become causes for further results. Viewing it thus broadly, the ancient Hindus said that every being up to Brahma was under the rule of Karma.

I was standing looking at the face of an old friend about my own age who had been sent to another part of the island, and it filled me with sadness unaccountably. One of the curious elemental creatures moved silently up near it. In amazement I strained my eyes, for the picture of my friend was apparently discolouring. Its expression altered every moment. It turned from white to grey and yellow, and back to grey, and then suddenly it grew all black as if with rapid decomposition.

2. Concentration, or Yoga, is the hindering of the modifications of the thinking principle.
In other words, the want of concentration of thought is due to the fact that the mind — here called "the thinking principle" — is subject to constant modifications by reason of its being diffused over a multiplicity of subjects. So "concentration" is equivalent to the correction of a tendency to diffuseness, and to the obtaining of what the Hindus call "one-pointedness," or the power to apply the mind, at any moment, to the consideration of a single point of thought, to the exclusion of all else... Upon this Aphorism the method of the system hinges. The reason for the absence of concentration at any time is, that the mind is modified by every subject and object that comes before it; it is, as it were, transformed into that subject or object. The mind, therefore, is not the supreme or highest power; it is only a function, an instrument with which the soul works... (Book I, Concentration)