How Fish Adapted and Evolved

How can we realise that this is our destiny,  a gift of the Almighty and not just a whim?

When we look at a human embryo, we see that it started out as a fish, evolving into a frog and then  a mammal.  The process of human evolution occurs through multiple stages and we evolved not from monkeys but originally from fish.

How did fish evolve into mammals? They lived near the coastline, and they would crawl ashore to forage for food. This was accompanied by a change in their fins as they developed something similar to bent legs. From the point of view of other fish, they probably looked really ugly.

But they were adapting.

This ugly duckling of its species was transforming into a fundamentally different living being. 

If they had fear of changing, then nothing would have happened.