I know this is delving more into normative ethics now- how should one live if reality is indeed an illusion, but that is congruent with life and living? More so looking at you
@Foreigner
There's no "should", to be honest. Just because it's a dream, doesn't mean it's not real. When you dream while asleep, it seems so real, no matter how preposterous. It seems so natural until you wake up. Well, the waking world isn't that much different. We go through periods of compliance and then lucidity with the dream, but whether you're compliant or lucid, the dream is seemingly real. When people hear the word illusion, they think of a reflection in a pond or a mirage in the distance. This illusion has substance... you can feel pain and pleasure in it. In this dream, people can die.
Someone who is awake to this... from the outside, they look no different compared to someone who is still asleep to it. The only difference I can discern is that the "asleep" person thinks they're doing it, while the "awake" person knows that nobody is doing it. In other words, in this dream, you're a you, but you're not the one doing it.
How does this help you?
Rather than dictating the content of what you do or don't do with your life, it allows you to let go of all attachment to what is happening, even if you simultaneously get attached to things. You see who the real doer is, and it's nobody. That doesn't mean you, <insert name>, isn't important. It doesn't mean you should negate your precious human level experience. It just means you can revel in the True Nature (see below) while knowing that God is running the show.
Further to this - and I'm going to use arbitrary words here because semantics can never possibly convey this - there is a real core reality driving this. Let's call it True Nature. Some may call it God, or Divinity, or Brahman, or whatever. Everything in this dream is arising and dissolving from True Nature, including your own appearance. The reason why it helps one to know this, is that when you really see the origin, which is not separate from you, you experience immediate bliss, a feeling of home, a feeling of everything you could ever possibly need. Everything is instantly ok. You realize that the dream can never offer you this: sex, drugs, career, relationships, travel, etc. It doesn't mean you stop doing those things per se, it just means you know that anything temporary satisfaction they give you is really just True Nature revealing itself to you through misattribution.
I'm sorry for so much wordiness, I'm just trying to be as accurate as possible. What I really want to say is, knowing this gets you NOTHING. There is no reward. It's just the truth. You're in total free fall with billions of other living beings, but there is no bottom to land on. There's nothing to attach to. Nothing needs to happen. You can do or be whatever this dream character of "you" wants to be and it's all gravy. You're totally free.