Tears are expression of pain and grief. Not everyone is able to express their emotions through words. Sometimes they are afraid or other times they are too broken to speak.
When someone is holding deep sorrow in their heart, they need someone to comfort them. This is the time when they need a supporting and compassionate person. If you see someone going through such as situation, offer them your shoulder to rest on. They might not be comfortable telling the whole story so you shouldn’t try to dig it out either. Knowing their story might not make any difference in their life but your love and compassion for them will.
Try to comfort someone if you see them in distress. Sometimes all they need is to someone to listen to their sigh and wipe their tears.