Trust

Today I talked, with a person.
That person told me:
Trust the God.
If you trust to God, after that ,God gives you the best things.
After the talking, up to now, just I think do I ever trust the God?
What is the meaning of this sentence?
And in whole of my life, how many times I trust the God?
I have many wishes and dreams, and is a very difficult, if just I close my eyes and don’t see my dreams bag and just trust the God.
This idea has a very beautiful view and very ideal, but when I come closer, found it very hard. Maybe each person who has a great ”Iman” can follow this and doesn’t insist about his/her dreams, just trust.