It is not about excitement, it is not about finding someone who will elevate you to a higher state, it is not about gaining anything, it is not about adding any particular thing to your life.  It is almost invisible.  It is like water or air.  The best way to cultivate love is by not cultivating it.  It is by making your own mind spacious, inclusive, clear and attentive enough that your beloved will be able to find her/his own place in your life as naturally as rain falling or clouds drifting across the sky.  If you can do this then a great love will come to you in time.  Great, but also ordinary.  It will happen because you yourself will have already become love.