No pain. No gain...

Simple words and I want to open them up a little more

There are two ways to look at pain 

-The pain of consistent, patient work, you will do, try, but you will not succeed, after which you will realize that the niche you have chosen does not work and needs to be changed.

You need chances and opportunities to find ways that don't work until you find a way that does. 

-The pain of loss - having lost, you will understand (if you are smart) and revise your mistakes that you have made and will not do it again 

You will realize that what you were doing was stupid and change the type of activity 

In these two options, you will most likely come to gain, in most of these pains will be alternately who will have them together 

The sun always shines after the rain 

We are wet but soon we will be on the beach under the sun