This anthology is a very good introduction to the thought of the Rambam. It contains large sections from the 'Mishneh Torah' and 'The Guide to the Perplexed'. It also contains explanatory notes which better help understand the texts.
For Rambam the highest aim of the religious life is attaining the intellectual love of God. He says in the 'Mishneh Torah' that when we perform certain precepts like putting on tefillin, or saying Shema we are helped in achieving the purpose of always loving God, and being ever mindful of Him.