Of all the 21 Gateways, this one is the perhaps the most important and the most difficult to describe. On the most simple level, realisation can the realisation of a project or a dream. On the deepest level, it points to the knowledge of who you actually are - not your role, but your essence.
In our world, the ongoing development of the realisation of your soul, flourishing in your body, is the ground we seek to make the most of every aspect of life.