Remember this.
We are ALL living in the same world, but we are all fighting different demons.
As tough as mine are, someone else might be fighting tougher demons. Those demons might might be breaking them down day by day. Crushing and beating down on them.
You have no idea what they are fighting inside their own mind. They might be sitting dangerously close to the edge, ready to fall and let go. Their light would fade from this world, because no one was there to save them. They do not know how to reach out when the darkness hits.
Always try and remember that when you are around people/.
Live with empathy and love.
Who knows? You may just save a life.