What is expansion of mind? Let us think, For example, nowadays we use GPS to drive our way to a particular destination. What happens when GPS stops working? We are stuck. Why, because, we have stopped looking at road signs. We hesitate to ask directions. To avoid such situations, we need to be more in tune with our surroundings. That is expansion of the mind.
To expand our mind is to start thinking about the world in a new way. Similarly, expanding ideas could mean looking at the same thing from different angles using, all our knowledge. Meditation assists us in expansion of mind, ideas and the human spirit.