From Patanjali's Yoga Sutras (Chapter 1, v. 39):
yatha abhimata dhyanadva
Or by contemplating on whatsoever thing one may like (the mind becomes stabilized)
Which reminds me of Soren Kierkegaard, "Purity of heart is to will one thing."
I love this because it is telling us, on the one hand, that the most important thing is focus and meditation/contemplation and, on the other hand, it is less important what we focus or meditate on. In fact, following our natural attractions can be the most fruitful.
So whether you are mesmerized by a beautiful view on your daily hike or drawn to meditate on a beautiful painting or icon or love the sound of your breath and footsteps while you run, all of these are worthy objects of contemplation.