Though called many different things by different cultures and religions, there is a source energy that flows through, creates and gives life to all. Let's call this source love. Love is all and what we consider to be unloving is really just a lesser degree of the same source. As we grow in life circumstances arise that cause the natural full flow of our source to become disrupted which causes things like dis-ease and discontentment. The more you are in alignment with your source, the "real" you, the better you feel hence the old adages "be true to yourself," "follow your bliss," "listen to your heart" and so on.
How do you know your degree of connection to your source? It's simple. How do you feel? The better you feel the better your connection to that of which you truly are, the worse you feel the more disconnected you are.
Outside experiences can often bring us into temporarily alignment with source and to help you understand what I'm talking about I've added the "Free Hugs" video below for you to watch.
This video is a good example of what happens when desires and beliefs come into alignment with our source, our "true" self even if only for a moment. Think about this feeling because it is what love feels like flowing freely through your being.