Stop, close your eyes, and contemplate a time in your life when you felt a genuine sense of caring for someone. It could be a time when you appreciated someone, were in admiration of them, or just plain loved them. What was it like? What was it like in your body? See if you can “open the file” of the feeling of caring on your body-mind’s desktop. Notice everything you can about the feeling, both in the space of awareness and in terms of physical sensation (softening, relaxing, tingling, sharp sensation, dull sensation, cool, warm, etc.) and where it was felt in the body. How might this relate to the concept of self-energy? Have you experienced this in your practice yet?
There are never right or wrong answers here in this forum. This will work differently for each of us.