Yes.
Personally I believe those who pass can be guides to others in need, not only those close to them.
Your friends life is not for nothing, and in spirit and in heart she is still with you, and will be, always.
I sincerely give my condolences to you for the physical passing of your friend, and though she is gone in flesh what she has taught you remains, the love for your friend remains and will always be there.
Focus on that love and comradeship and continue to share it with others. Honor your friend's memory by being a remarkable example of the friendship you two possessed.
She will be with you forever in spirit, and will be a guide to others now she has departed, as she was to those who took the effort to know her while she walked here on this earth.
Take comfort in her memory, Indigo_Sky.
Blessings, be well.