Billy Sheehan experiences his inner life as a process of growth and maturation, nurtured by his involvement with others and the positive and negative encounters this generates.

Billy Sheehan, an individualist, tends to be reluctant to team up with others. He attempts to free himself from any outside influence and is eager to leave his personal imprint on the world. Often, due to his lack of perspective in relation to other people, he rebuffs their help and cooperation on projects. It is only by working and acting independently that he can accomplish his goals and ambitions.

Billy Sheehan tended to keep his individual identity intact while contributing to important social causes or collective ideals. For this reason, although he became personally involved in social affairs, he was likely to resist any project he would be unable to lead himself, according to his own individual direction. He tended to identify himself with an activity with social implications and attempt to know himself through this activity.

Billy Sheehan lives in a world which is in continual contact with his dreams and subconscious. He cannot live without love, and, like water which flows into and takes on the shape of the vessel which contains it, he is always ready to submerge himself in another person. Stirred by forces he does not control, he may be aroused by passions which are impervious to the restraints of reason and logic. He is an emotive creature in harmony with the flow of his feelings, impulses, and urges.

Billy Sheehan is characterized as having a stable character with a well-tempered theme. This balance of tensions allows him to acquires success without much effort and prevents him from becoming frustrated. However, he must be careful not to take on too many responsibilities and maintain confidence in his ability to accomplish things.