Knowing is not enough.

A treasure buried under the earth.
Honey encassed in a beehive.
A healing medicine.

If you don't know these exist, they are of no benefit to you. If you know they exist, but sit back and do nothing, they are also of no value to you.

You must dig out the treasure. You must carefully extract the honey. You must take the medicine.

Knowing is not enough. It's a start, but you need to act and you need to put in the effort. 

Effort is what makes the treasure useful. Effort is what allows you to enjoy the honey. Effort is what eliminates your pain and sorrow.