Do you carry every sadness with youI interpret this to mean that you should be careful not to carry too many of your sad thoughts along with you for any distance, and that you should let go of them almost as if they were grains of rice that you let slip from your fingers as you walk along. Some may stick to your hand, and you can follow their trail back, but they should not be a burden; they should not constantly fill your hands so you cannot hold anything.
Every hour your heart was broken
Every night the fear and darkness
Lay down with you
That view of things is very helpful to me.