EDIT: Now I reflected why I didn't like it. And it is the word gratitude. Granted, I am not a native English speaker but Wikipedia tells me this: "Gratitude, thankfulness, gratefulness, or appreciation is a feeling or attitude in acknowledgment of a benefit that one has received or will receive. " In other words, it implies that there is someone in the other end of a happy feeling to be feel thankful to. And sometimes there is, but being grateful for nice weather, hearing birds singing or being able to walk (not being disabled) implies to me that there is someone "larger" (read a God) out there to be grateful to. And that does not sit well with me. For example, I can be happy to be in good health, but that does not imply that gratitude goes with it.