Your sweater is so soft.
This is a single kanji with an い on the end, meaning you know it's probably an adjective. What's the adjective form of gentle? It's gentle... but in this word's case, it's also flexible, soft, and tender.
You find something that is so gentle and soft to the touch. You touch it. You can't stop. The monkey you're touching tells you to stop. It doesn't like to be touched. But, you won't stop. "Yah what (やわ) you gonna do about it, monkey?" "Yah, what can I do, I guess," replies the monkey.