Indeed. This is their gift to us.
I want to make one point clearer. Those who crossed over neither have greater power than us nor they know the future. In this regard they cannot guide us how to live our lives, that responsibility always remains ours. Like you said, they have a broader perspective about their own past physical life, and from their own personal vantage point they can advice.
We must always exercise our own discretion whether or not to follow their advices.
Thanks for your comment, master. 🙏