One of my players uses the Dream spell regularly as pretty much a visual telephone. He casts it to contact people he wants/ needs to talk to, who are otherwise unavailable due to distance. This has never been a problem, since he has always stayed within the limitations of the spell description.

However, now he has let it slip through in advance that he would like to use the spell to pretty much interrogate someone he knows very well in that person's dreams. The spell description states that you can shape the landscape and objects during this dream

"The messenger can also shape the environment of the dream, creating landscapes, objects, and other images."

but it doesn't clarify if you can influence the target of your spell. Could he for example have this person tied to a chair while asking questions? Could he cast spells to intimidate the person or do physical harm in order to make the person talk? I am not sure where the line is between the "just talking"-version and the "nightmare"-version of this spell.

  • \$\begingroup\$ You might want to check whether the player means "interrogation" literally, or whether they're planning something more subtle, e.g. impersonating someone the target knows and trusts and simulating a familiar environment in order to trick the target into willingly revealing the desired information. \$\endgroup\$ Sep 4, 2023 at 20:27
  • \$\begingroup\$ @RyanC.Thompson: I will do that. But as far as I understood he had planned the more "brutal" approach and blatantly threatening/ intimidating the target. \$\endgroup\$
    – Ella
    Sep 5, 2023 at 15:46
  • \$\begingroup\$ If you're looking for guidance, 3.5 has the Lucid Dreaming skill, which specifies some restrictions on manipulating dreams. In particular, harmful effects like lightning strikes and bottomless pits beneath feet are forbidden. \$\endgroup\$
    – Elliot
    Sep 10, 2023 at 12:08

1 Answer 1


The reaction of the target to the dream is up to the target

The normal version of dream merely states:

If the target is asleep, the messenger appears in the target’s dreams and can converse with the target as long as it remains asleep, through the duration of the spell.

Nothing there states that the messenger has any control over the target, and normally if a spell allows you to control another creature, like suggestion does, it will explicitly tell you so, and will tell you the limitations of that control, too. Dream certainly does not allow you to cast additional spells on the target in the dream.

The only way you could possibly influence the target here is as you would be able to in a normal conversation: you can try to intimidate it, persuade it, or deceive it into disclosing information. How such attempts are handled would follow the normal rules of resolving social interactions.

The ability to create an environment that may feel threatening might give you circumstantial advantage on those attempts, at the DM's option. The spell gives no further information on what "landscapes, objects and other images" encompasses, so the DM must rule if the caster can have the target dream they directly are affected by the environment, like being bound to a chair, or feeling the heat of glowing irons.

Given that the overall experience is described as a conversation, and given that there is an explicit alternative option for instilling nightmares, I would rule it cannot be anything too horrific, and would not include things like restricting, suffocation or causing pain.

The "nightmare" section of dream reads:

You can make the messenger appear monstrous and terrifying to the target. If you do, the messenger can deliver a message of no more than ten words and then the target must make a Wisdom saving throw. On a failed save, echoes of the phantasmal monstrosity spawn a nightmare that lasts the duration of the target’s sleep and prevents the target from gaining any benefit from that rest. In addition, when the target wakes up, it takes 3d6 psychic damage.

Even this does not allow you to control the target to disclose a secret. You merely can deliver a message of up to 10 words, there is no conversation here. The target then makes a saving throw and suffers damage and loss of rest if it fails. That's it.

Anything beyond these two functions, conversation and nightmare, would be DM ruling.

  • \$\begingroup\$ I'm very amused by the idea of threatening bodily harm on somebody while in a dream. (To be clear, it would probably work since the target doesn't necessarily know it's a dream, they just recall the conversation clearly on waking.) \$\endgroup\$ Sep 5, 2023 at 18:19
  • \$\begingroup\$ A much more credible threat could be implying that the next time they do a dream visit, it'll be the less pleasant option \$\endgroup\$
    – StephenTG
    Jan 17 at 16:20

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