Readings & Meanings:
Add sugar as necessary.
But look, the most important son-in-law-to-be isn't even in the marriage hall yet!
If there's anything you want, just ask.*
Up top is 西, kinda, and down below is 女. In actuality, the above radical is 襾 (which is still called "nishi" just like 西), and the pictographic origin is just bizarre. Check it out if interested: http://www.kanjinetworks.com/knetwork/KOG.html#KOG31
I, however, prefer to put together the idea of "west" and "woman," as you can see in the title of this post.
Even though they're both pronounced いる, don't confuse 要る (to need) with 居る (to be). Think of the western woman: you don't just want to be with her, you NEED her.