Divination

4th-Level Divination Spell (Cleric, Druid, Wizard)

Casting Time: Action
Range: Self
Components: V, S, M (incense worth 25+ GP, which the spell consumes)
Duration: Instantaneous

This spell puts you in contact with a god or a god's servants. You ask one question about a specific goal, event, or activity to occur within 7 days. The DM offers a truthful reply, which might be a short phrase or cryptic rhyme. The spell doesn't account for circumstances that might change the answer, such as the casting of other spells.

If you cast the spell more than once before finishing a

A Long Rest is a period of extended downtime -- at least 8 hours -- available to any creature. During a Long Rest, you sleep for at least 6 hours and perform no more than 2 hours of light activity, such as reading, talking, eating, or standing watch.

During sleep, you have the Unconscious condition. After you finish a Long Rest, you must wait at least 16 hours before starting another one.

Benefits of the Rest. To start a Long Rest, you must have at least 1 Hit Point. When you finish the rest, you gain the following benefits:

Regain All HP. You regain all lost Hit Points and all spent Hit Point Dice. If your Hit Point maximum was reduced, it returns to normal.

Ability Scores Restored. If any of your ability scores were reduced, they return to normal.

Exhaustion Reduced. If you have the Exhaustion condition, its level decreases by 1.

Special Feature. Some features are recharged by a Long Rest. ... [more]

, there is a cumulative 25 percent chance chance for each casting after the first that you get no answer.

Source: Player's Handbook, p. 264