Don’t worry! In the beginning, it can be difficult or awkward to bring up that warm, glowing feeling of Loving-kindness.
These videos may help you to bring this feeling of Loving-kindness back into your meditation:
The feeling doesn’t need to be very strong; a little spark is enough! If you look into the eyes of a baby, do you need to try to feel love? Is it hard to feel it while playing with a puppy? Or while sitting on a bench in a park, on a pleasant day, watching people go by?
Develop this feeling one sit at a time and you will be going down the Buddha’s Noble Eightfold Path. You use the Brahma Viharas to become awakened. Developing a smile will make this practice much easier.
For more information, read this helpful article: