It feels great to be grateful. On the good and eventful days, gratitude flows seamlessly like a stream, and if you keep a gratitude journal, it won’t take you long before you start writing about the things that make your heart rejoice. But, like life, the gratitude practice is not an eternal upward slope. Even the best of us will feel challenged as struggles dim our energy to appreciate the many blessings we have. Here's how you can feel grateful when it's hard to find anything to be grateful for.