Many cats love their owners as much, if not more than we love them, but how a cat shows his love and gives him affection is very different from how humans show love.
In the cat world, there are many ways to express yourself. The most obvious and common way cats show their happiness and love is through purring. Cats seem to have a small special engine inside them that starts when they are relaxed and enjoying something. You will often hear this rumbling and vibrant noise while caressing your cat. The purrs can also mean that your cat is upset, but it is not that common.