The text provides a detailed guide on securely managing and accessing secrets in AWS Lambda Functions using Pulumi and AWS Secrets Manager. It explains the importance of not storing plaintext secrets in Lambda's environment variables and instead suggests using AWS Secrets Manager to encrypt and manage these secrets. The process involves configuring the stack with both plaintext and secret entries, creating an interface to access these configurations, and storing secrets in AWS Secrets Manager while storing their ARNs in the Lambda environment variables. The guide further details the creation of necessary IAM roles and policies to grant Lambda access to these secrets, and describes the setup and deployment process using Pulumi. Additionally, it highlights the importance of cleaning up resources post-deployment to avoid unnecessary costs and mentions alternative tools for secrets management, such as Azure Key Vault and Hashicorp Vault.