When we speak of loving God, we are not referring to "falling in love" with God, as though love, like a pit, were something that you "fall into." Genuine, lasting love comes from respect and appreciation.
That is why, on the whole, we understand this commandment to mean that we should act as though we love God. We should keep the commandments faithfully, and make personal sacrifices for God just as we would towards a child, spouse or parent whom we love.
On a deeper level, though, the Torah is revealing a secret here: Planted within each person is a hidden capacity to truly love God. Acting with love towards God cultivates this dormant emotion until it grows and shines forth.
The study of the Torah, with its breathtaking depth and beauty, is a prime way to cultivate this love.
Another way to awaken our love for God is to study science and nature. Consider, for example, the fact that your stomach is full of acids that are strong enough to dissolve ox leather, yet these very same acids don't melt through the soft flesh of your stomach! This is because the Creator provided you with a specially formulated mucous lining to protect against this. Becoming aware of countless such kindnesses will certainly nurture our innate feelings of thankfulness and love towards God.
