The relative ability of materials to transmit energy is well known, as is it that some transmit power well and efficiently while others do not transmit any energy at all.
For efficiency, we seek those that provide the best conductivity, and with that, we obtain desired results.
People conduct energy. Some will inspire us and invigorate us to do more. They are the ones who allow us to be ambitious, to believe that it is possible. We feel creative around them, and sometimes they even snap us out of the doldrums. In contrast, some merely drain us. As a result, we lack inspiration, feel lethargic, tired, and even wound up when we are around them.
Find your source of energy. The one that invigorates you to be the better version of yourself. While no one is responsible for your contentment, surround yourself with those who make all seem brighter. It is contagious and soon we are the catalysts for a new source of power.