Love is an act of will, and it takes skill to be able to remember to give rise to it in all conditions. You have to practice it. You’ll find yourself giving way to negative habitual behavior more frequently than you’d think, especially when you start to watch for it.
When you give rise to the lower energies, you commit the totality of your being to that energy, and you transmit it to everyone around you, whether they are consciously aware of it or not. This is how we all hold ourselves collectively in a state of darkness and obscuration.