What you are really grateful for is the opportunity, not the thing that is given to you, because if that thing were somewhere else and you didn't have the opportunity to enjoy it, to do something with it, you wouldn't be grateful for it.
der indeholder muligheden. Hvad du virkelig er taknemmelig for er muligheden, ikke den ting, der er givet til dig, for hvis denne ting var et andet sted, og du ikke havde muligheden for at nyde den, for at gøre noget med den, ville du ikke være taknemmelig for den?