That means it will never be completely satisfied by anything less than infinity. The mind will find fulfillment only when it moves beyond objects into the infinite field of awareness itself. The Sanskrit word Ananda describes the bliss of pure consciousness. Bliss attracts the mind like no-thing could. And we don't have to go anywhere to find it.
Pure consciousness is just the simplest form of our own awareness, located at the source of thought.
When the mind takes the right angle and lets go, then its own nature automatically draws it toward bliss. Human abilities to walk, talk, eat and read are all learned. Transcending is no different. We have the innate ability but we have to learn the technique of taking the correct angle. In every time and place people have transcended spontaneously, without any technique.