Reddit reviews The Fisher King and the Handless Maiden: Understanding the Wounded Feeling Function in Masculine and Feminine Psychology

You might like to read this on the subject especially seeing how curious most Redditors are about Myers Briggs / Keirsey personality tests..

https://en.wikipedia.org/wiki/The_Girl_Without_Hands

Read that fairytale (try to read an original version of the fairy tale, not just the wiki summary).

We touch with our hands; we connect to lovers, children, pets, etc. with our hands. In today's society, we are oftentimes asked to trade our ability to touch / feel, in exchange for money. This is one of the predominant myths of modern western society. The severed hands are what you are being asked to give up in exchange for silver, or efficiency, or modern convenience, etc. At minimum, the dream is asking you to be aware of any tradeoff you are being asked to make.

After you read that, read a version of the fairytale about Bluebeard's. The box in your dream is analogous to Bluebeard's closet. You discovering the severed hands in the box is analogous to Bluebeard's wife discovering the murdered bodies of his ex-wives in his locked closet.

https://en.wikipedia.org/wiki/Bluebeard

Again, google around to find an original version of the fairytale.

Then just meditate on these fairy tales and their possible connection to what you experienced in the dream. And then sit back and await whatever new information the unconscious will next deliver to you in a dream. That's my advice, anyway.

If this line of connecting to your dreams interest you in any way, I highly suggest the following book:

https://www.amazon.com/Fisher-King-Handless-Maiden-Understanding/dp/006250648X/ref=cm_cr_arp_d_product_top?ie=UTF8

Its an easy and light read. Half of the book is dedicated to the symbolism of the "handless maiden". Its an excellent read, imo. Given that you actually dreamt about the severed hands in a box, I especially recommend it to you. I think you'll find it enlightening.