It is so tempting for us to advise our near and dear ones when they are suffering. We want to get them out of it quickly. I also used to give advise to people when they go through such depression/pain but didn't understand why they are not able to get it and come out from it. Gradually, I understood that, they don't want advise, they just want someone to listen to them and understand what they are going through. One can only come out from such suffering or pain if he/she decides to come out from it. As the proverb says 'God also can't help you if you don't help yourself'. So, only thing we can do is 'Be with them, take care of them and actively listen to them'. that will heal the person and they will find their own way to come out from it. And as David said right combination of witnessing and skillful intervention can help them to find answers within themselves!