Can I import a private key from a bitcoin wallet?

Hello, I'm a crypto enthusiast and I'm currently exploring different options for managing my bitcoins. I've been hearing a lot about importing private keys from one wallet to another, and I'm curious about the process. Could you explain if it's possible to import a private key from a Bitcoin wallet? I understand that private keys are the fundamental component of bitcoin ownership, and I want to ensure that I'm doing this securely. Also, what are the steps involved in the process? Is there any risk associated with importing a private key? Thank you for your help!