Clearly, simply, “thank you” means “I receive it”.
You wonder why it is so hard to say thank you?
Perhaps because we think instead of appreciating.
Perhaps because we are afraid the “it” might contain a bitter medicine.
Perhaps because we are too proud to admitt our needs and likes get satisfied by the miraculous appearence of “it” in our lives, not through our bloody sweaty effort.
Or maybe we just lost hope that anything of real value could appear in our lives.
Or perhaps we are so lost in unconscious thought, so aloof, so distracted from This Now …
Anyway … the right moment to restart saying “thank you” is right now.
Yes, say “thank you for this Now!”
See what happens.