It can be trained, like other qualities.
Assess:
How are your relationships with others?
How do you help others?
Do you let others help you?
Act:
Surround yourself with good people. Take care of them. Let them care for you.
Take care of your body.
Engage with your physical community.
Thanks to my friend @silastheravin for introducing this concept to me on his podcast @awakeinrelationship