Why do you think people have suicidal thoughts? Is it reasonable to result to potentially killing oneself to be able to remove the pain a person is suffering from? What are your thoughts about this matter, is it acceptable or not? Why does a person result to thinking of suicide? How can you help the person to change His/Her mind?
Suicidal thoughts are actually a cause of depression. A person who is suffering from depression needs attention and further medication because it is a serious case these days. I think people who are suffering from this must not overthink and avoid the feeling of being along and extreme sadness. Try to keep yourself busy to avoid negative thoughts.