Come unto me, all ye that labour and are heavy laden, and I will give you rest.
Matthew 12:28 (KJV)
Jesus gives us rest because when we enter into Christ, we enter into a finished work. The moment we put our faith in Jesus as Lord of our lives, all things pertaining to life and godliness are made available to us. Our task is not to struggle and to work hard to try and get God to bless us, but to live each day open and receptive for the blessings we already have in Him to manifest in our lives.