You are a wondeful friend for wanting to help. Great question to ask too!
Everyone needs and wants to feel validated about their feelings. It doesn't mean we have to understand what they are feeling, just accept how they feel and like the others said, listen! Lending an ear, a hug, a virtual hand to hold goes a long way in helping someone feel validated and knowing that their feelings matter. Being there for them through their darkest times, and then rejoicing with them in their quest for healing for every small step that is taken will go a long way!
(((((((((((((((((((((((Greenleaves)))))))))))))))))))))))
Hugsssssss
J