Ah, but it takes a great deal of talent to compress this much spirit into so small a hröa! Think of it as wearing an extremely tight bodice or clingy silk; alluring, no?
I spent a long, long time in the Spring of the world at the size of a mountain, while my beloved could fit in the palm of my hand! We were equally cognizant of who was stronger then as now– even if he were mountainous and I minute, it would be obvious to any Ainu who was, in fact, the greater of the two.
This body I wear now is one I wore when I lived as a prisoner in Aman. It behooved me to pick a size and shape that seemed approachable to the Eldar; one none-threatening and easily underestimated. I grew somewhat accustomed to that shape… it is compact and enjoyable, and even, as I mentioned earlier, sensual, to wear.
There are other benefits to being smaller than my lieutenant. I will let you guess what they are.