You touch a willing beast. For the duration of the spell, you can use your action to see through the beast's eyes and hear what it hears, and continue to do so until you use your action to return to your normal senses.
You gain the ability to comprehend and verbally communicate with beasts for the duration. The knowledge and awareness of many beasts is limited by their intelligence, but at minimum, beasts can give you information about nearby locations and monsters, including whatever they can perceive or have perceived within the past day. You might be able to persuade a beast to perform a small favor for you, at the DM's discretion.