Human desire is the driving force. Life is the environment. The eyes are the visual control. The mind is the machinery.
However … the heart is the one that can guide them right. It is the one that knows the good from the bad. It is the one that can take us all out of the mess we are now in.
The heart is the only one that can make us think to ourselves: “What a wonderful world”. Do it more often! And take them peaches!