魂

1. Origins, structure, and basic meaning

• Structure: 魂（たましい） means a soul regarded as a person's spiritual essence, or the spirit of wholehearted effort.
• Basic usage: Use it for souls in an old story or for putting one's whole heart into a work.

2. Common pitfalls and similar expressions

• Putting one's soul into something
  • 作品に魂を込める figuratively means devoting care and passion to a work.