Accepting G-d's authority means that the perception of my existence is identical to the knowledge that I start from a point of prior obligation. Naso is the longest in the whole of the Torah. Naso also contains the greatest number of Midrashim, the homiletic expositions which contain the Torah's hidden mystical depths. And, Naso always follows the festival of Shavuot, the giving of the Torah at Sinai. We live in a generation which is on a very low spiritual level.
People are more interested in feeling spiritual than being spiritual.
We want a quick spiritual fix. We have been taught that fast is good, instant is better. Fast is what we want from our food, our cars, our computers. Instant is what we want for our gratification. Instant religion, instant feel-good spirituality.