How do I get Chainlink on MetaMask?

Could you please elaborate on the process of acquiring Chainlink tokens using MetaMask? I'm interested in understanding the steps involved, from setting up my MetaMask wallet to successfully purchasing and storing Chainlink. Could you guide me through the necessary configurations and transactions required to complete this task? Additionally, are there any specific security measures I should take into account to ensure the safety of my Chainlink holdings within MetaMask? Your assistance would be greatly appreciated as I navigate the crypto world.