What does it actually hold?
The useful distinction is between the record and the keys. The public record tracks amounts that can be spent. Secret keys let a wallet make an approval, called a digital signature.
A wallet can also show a receiving address and payment history. An address can be shared to receive a payment. A private key or recovery phrase must stay private.
Is it like a purse?
A key ring is a closer comparison. Imagine changing the key ring you carry. The building does not move into it; the keys give access. In the same way, restoring wallet keys does not move bitcoin out of a broken phone.
The comparison has limits: someone who copies a spending key may be able to spend too. Keeping the secret information private matters as much as having a copy for yourself.
What about an account with a service?
If a service holds the keys, you rely on it for access and withdrawals. If you manage the keys, you take responsibility for their safety and recovery. A login password and a spending key do different jobs, even when the screens look similar.
Sources
- How Bitcoin works
- Protecting and backing up a wallet
- Bitcoin Ecosystem project: source of the chain descriptions in the family note.