Sunlight is good for healing it takes away the negativity in the system. That's why some of us get in a winter depression.

Just imagine that the sunlight is comng from the crown chakra into your body and taking all the negativity away in your system. Als you can imagine that sunlight is taking away the negatvity in your energyfield. There are ofcourse a lot of exapmles and meditations with sunlight but thouse are the easy ones.