The most fundamental question you will ever have to face is whether or not you are a spiritual being. This question alone will determine the nature, the motivation and the content of every action you will take for the rest of your life.
If you are not a spiritual being you are an inanimate being. You lack true consciousness, the power and responsibility of making decisions, and the ability to harmonize yourself with your surroundings. You are a spring, waiting to wind down. You are, by nature, selfish- and you cannot do a thing about that.
If, however, you are a spiritual being, you are assuming that the essence of yourself is not and cannot be seen. You imply that your true self is greater than the physical presence and confines of your body. This implies that a covert you is responsible for what your body does.
You must at some time choose whether your believe you are a body or a spirit.
Having made this choice, you have immediately decided whether or not you are responsible for your own actions. A body eats, sleeps, eliminates waste and gravitates toward pleasure. This is all that a body does. Intellectual and artistic pursuits, as well as sacrifices made for a career or other goals may seem selfless, but are actually mere demonstrations of the ability to defer an immediate pleasure for the promise of a still greater pleasure later on- if they are done by a body, independent of a transcendent spirit.
A body knows no right or wrong; it merely sidesteps temptation to avoid a long-term increase of pain. If you do something "just because it is right" you are implying that you are governed by something stronger than pleasure and indifferent (to some degree) to pain.
In fact, you are stating that you are governed. That is, you are acknowledging the presence of an absolute right, independent of your own desires, and are willing to be governed by an alignment toward or allegiance with that universal spirit of goodness. Therefore, you are saying that you can and will be controlled by an outside presence or force.
If you choose not to be governed by a presence or force you believe to exist, you are choosing to be a body. If you believe in outside forces of good and evil, and you actively choose an alignment towards evil you are, at least, acknowledging spirituality. But, in both cases, you are deliberately choosing selfishness and self destructiveness. The difference between the two is only a matter of degree.
Your spirituality may be thought of as an equation. The solution may be thought of as the difference between what you will do for your body and how much you will sacrifice that body for your own notion or determination of a universal goodness, greater than and external to the parts of you that you can discern through your five common senses.
Are you a spiritual being?