Anyone who has read the Bible know what faith is.  A good definition  is in Hebrews 11:1.  It reads like this

Now faith is being sure of what we hope for and certain of what we do not see.

We know how much God desires that we have faith from Hebrews 11:6.  That verse reads as follows.

And without faith it is impossible to please God, because anyone who comes to him q must believe that he exists and that he rewards those who earnestly seek him.

Pleasing God should be our number one priority.  How does it feel to us  when we exercise our faith especially when we are out of our comfort zone.  When we exercise our faith It is like a piece of silk rubbing against our skin.  It feels good.  When we stop exercising our faith it is like that cloth not rubbing anymore.  You feel the cloth for a while.  After a short time you stop feeling the cloth but like God it is still touching you.

That is similar to exercising our faith not only to please God but our self gets pleasure also.