Can one be commanded to love? If a stranger comes up to you ordering you to love him or her, you would probably think he's out of his mind. Even with people closer to us, often we find individuals that are just hard to love and we'd rather avoid those. Returning to the question, we cannot really be commanded to love, can we?
If we go step by step, we notice that it starts by saying "Love the Lord your God with all your heart and with all your soul and with all your mind." As in the example of the stranger, it is more difficult to love a foreign person you are not familiar with and don't know what to expect. The same way, if we don't first know God, how can we truly love Him?
Once we start knowing our Creator and see all the beautiful and pure things HE invented for us, and when we see all the love HE intends for us, it is His kindness to us that makes us love Him in return. However, to love God indeed, knowing Him (or about Him) in a shallow manner is not enough.
The deeper we go to discover why GOD beyond doubt deserves our love, we find new depths of His character that make us love with Him over again! Knowing God involves spending time with Him in reading His Words in the Bible and talking to Him in prayer and thus we don't just gather information but our character, values change resembling God's nature more!
These roots and establishments in love bring more of God's image on the inside (and outside) of us, the more we soak in His presence the more we are able to walk in His plan for our lives accomplishing His will in our lives and consequently discover that we can love as He loves.
It all comes just by spending time and walking with God everyday, and this commandment is a natural result of our fellowship with God and we love Him because we see He deserves nothing less but to be loved with all our intellect, with all our emotions and affections.
The strength gained in God's presence enables us to successfully accomplish the second part of the love commandment: "And love your neighbor as yourself". We don't usually have problems when it comes to loving ourselves; have you noticed that regardless of your busy schedule, you make time for those things you really love doing?
Knowing GOD is that crucial and life changing, energizing and empowering us to love others, to be able to live up to a lifestyle standard that we, through our own strength could never achieve!