Explain this quote from Frankenstien

Question

The different accidents of life are not so changeable as the feelings of human nature. I had worked hard for nearly two years, for the sole purpose of infusing life into an inanimate body…[b]ut now that I had finished, the beauty of the dream vanished

Answer 1

The doctor's work was much more interesting and inspiring when he was still pursuing his "dream". When the dream became reality -- and what a monstrous reality! -- his creation "fantasies" crashed to earth.

What he thought he was doing and what he actually did were two very different things!

Answer 2

History repeats itself, so are accidents of life, they are repeated. What changes is the attitude towards things of life.

Answer 3

How you feel about things changes more than things change themselves.

He wanted to make his animated corpse really bad, but once he saw how awful it was, he changed his mind and hated it.