Turn on it Spend it Drop it Stop on it The answer is worth more than a thin one

My precious hides withing this walls, and yet you stand firm and tall. Small for some and majestic for others, I will surely bring glee to you special partner.

I used to chase and fight at night, Now I nap in warm sunlight. No more babies, no more roar, What was done so I roam no more?

I am a way you move, not run or walk, Close to the ground as you go along. Slow and low is how I go. What am I?

I’m held, not seen, yet often shared, I may be calm or strongly declared. I’m not a fact, though I may sound, I change depending who is around.