I’m grateful I can be happy for others via /r/gratitude

I'm grateful that when I see others have the "things" I would like, I'm truly happy for them. I went through 3 or 4 years of bitterness for what I'd lost and now when see others with it, I imagine how grateful they must feel. I feel vicariously. So not only no bitterness, but happiness. I'm very grateful for that!