The pleasure of learning of knowing and understanding is one of the most important and basic feelings that each child expects to receive from the experience he or she is living through: either alone, with other children or with adults. It is a constructive feeling that must be reinforced so that the connected pleasure lasts even when reality may prove that learning, knowing and understanding can be difficult and require effort. It is through this very capacity of overcoming the difficulty that pleasure transforms itself into joy.
I think this statement so clearly connect the cognitive with the emotional. The joy in the process is as essential in the learning