Bringing of Bikurim – Hakoras Hatov, Recognizing the Good

When we give something on behalf of something else than the second thing for which the first thing is given is more beloved than the first. We bring bikurim to show that Hashem is more beloved than the first fruits, which is much beloved as the first dollar earned, is being sacrificed in His name by our recognizing all He has given to us. This is also the reason that we show recognition at the Hagaddah for Hashem taking us out from Mitzraim by saying the same pesukim.