Here is great perspective from Alyssa Cohen, homeopathic doctor on how we can empower ourselves to change our energy or vibrational state and impact our moods.
I experienced singing kirtan with her in November 2012. I was clueless about kirtan, and I was carried by the enthusiasm of her invitation. I definitely felt a vibrational difference and that opened the door to many possibilities for me. An example of how keeping an open mind and supporting the art that people around you create actually creates more positive energy and learning.