The dictionary you linked says “the quality or feeling of being grateful or thankful:”
Grateful being: warmly or deeply appreciative of kindness or benefits received; thankful
Thankful being: feeling or expressing gratitude; appreciative.
If you got a benefit of still being alive and you appretiate that benefit, you can be grateful. It’s not necessary to identify an agent who’s responsible for the benefit. The imporatant thing is that there a benefit and you appretiate the benefit.
It looks like the lay person’s definition (The quality of being thankful; readiness to show appreciation for and to return kindness) is somewhat different from the psych one (Gratitude is an emotion expressing appreciation for what one has). I’m now confused enough as to which one I feel that I shall stop here.
The dictionary you linked says “the quality or feeling of being grateful or thankful:”
Grateful being: warmly or deeply appreciative of kindness or benefits received; thankful
Thankful being: feeling or expressing gratitude; appreciative.
If you got a benefit of still being alive and you appretiate that benefit, you can be grateful. It’s not necessary to identify an agent who’s responsible for the benefit. The imporatant thing is that there a benefit and you appretiate the benefit.