The King of Pentacles is a lot like King Midas - everything he touches turns to gold. He is a pillar of financial stability, with wealth and experience to share with everybody. This is the logical conclusion of all the positive ideals of the Pentacles suit: through diligence, responsibility and attention to detail we can and will become like the King of Pentacles. He is always rich materially if not spiritually, and he encourages you to live your life like he would. When this card appears he can either represent a person in your life, or a part of yourself trying to be expressed.
No one has a stronger character than the King of Pentacles. His word is as good as his gold, and certainly just as valuable. He's similar to the Knight in that whatever he says he will do, will get done. But where the Knight takes on responsibility for the sake of responsibility, the King is in it for profit. He's a businessman to the core, the master of the material world. This could be seen as a fault, and it can certainly become so if he lets it get too far out of hand, but this rarely happens. He has too much experience and intelligence to be swept away by the allure of money; he prefers the security and peace of mind that it brings him.
A lot of people see the King of Pentacles as dull and unimaginative, but this is probably because he simply prefers old ways of thinking and acting. This is not to say that he refuses to learn new things; in fact, he likes learning and has a wide variety of skills to call upon. But the old methods usually work best for a King of Pentacles and so he sticks with them. He is relied upon because of his devotion to duty and his trustworthiness. It's rare to see a King of Pentacles get angry, because they have a steady temperament and a very long fuse. But he is unforgiving to those who violate his trust, and for those people he has absolutely no mercy.
Whenever you need the skills to manage your material affairs competently and efficiently, you can call upon the King of Pentacles. Take up all the vast challenges of the material world, and know that you can conquer them all if you work hard. Give generously of your time and resources, because by giving you often receive more, and making more money is something that all Kings of Pentacles love to do! When he appears, know that you have reached the height of achievement and you don't need to take any more risks. Simply watch for the right time to draw money and wealth to yourself. Let the King inspire you to success so you can inspire others in turn.